diff --git a/app/src/main/java/com/huanchengfly/tieba/post/api/Utils.kt b/app/src/main/java/com/huanchengfly/tieba/post/api/Utils.kt
index f47e89dc..a467e520 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/api/Utils.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/api/Utils.kt
@@ -111,7 +111,8 @@ val List<PbContent>.renders: List<PbContentRender>
                 0, 9, 27 -> {
                     val lastRender = renders.lastOrNull()
                     if (lastRender is TextContentRender) {
-                        lastRender.append(it.text)
+                        renders.removeLast()
+                        renders.add(lastRender + it.text)
                     } else
                         renders.add(TextContentRender(it.text))
                 }
@@ -136,7 +137,8 @@ val List<PbContent>.renders: List<PbContentRender>
                     }
                     val lastRender = renders.lastOrNull()
                     if (lastRender is TextContentRender) {
-                        lastRender.append(text)
+                        renders.removeLast()
+                        renders.add(lastRender + text)
                     } else
                         renders.add(TextContentRender(text))
                 }
@@ -149,7 +151,8 @@ val List<PbContent>.renders: List<PbContentRender>
                     val emoticonText = "#(${it.c})".emoticonString
                     val lastRender = renders.lastOrNull()
                     if (lastRender is TextContentRender) {
-                        lastRender.append(emoticonText)
+                        renders.removeLast()
+                        renders.add(lastRender + emoticonText)
                     } else
                         renders.add(TextContentRender(emoticonText))
                 }
@@ -190,7 +193,8 @@ val List<PbContent>.renders: List<PbContentRender>
                     }
                     val lastRender = renders.lastOrNull()
                     if (lastRender is TextContentRender) {
-                        lastRender.append(text)
+                        renders.removeLast()
+                        renders.add(lastRender + text)
                     } else
                         renders.add(TextContentRender(text))
                 }
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/common/PbContentRender.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/common/PbContentRender.kt
index e55c1dbd..8ccece5a 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/common/PbContentRender.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/common/PbContentRender.kt
@@ -26,22 +26,22 @@ interface PbContentRender {
 }
 
 data class TextContentRender(
-    var text: AnnotatedString
+    val text: AnnotatedString
 ) : PbContentRender {
     constructor(text: String) : this(AnnotatedString(text))
 
-    fun append(text: String) {
-        append(AnnotatedString(text))
-    }
-
-    fun append(text: AnnotatedString) {
-        this.text += text
-    }
-
     @Composable
     override fun Render() {
         EmoticonText(text = text, fontSize = 15.sp, style = MaterialTheme.typography.body1)
     }
+
+    operator fun plus(text: String): TextContentRender {
+        return TextContentRender(this.text + AnnotatedString(text))
+    }
+
+    operator fun plus(text: AnnotatedString): TextContentRender {
+        return TextContentRender(this.text + text)
+    }
 }
 
 data class PicContentRender(
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/DislikeBtn.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/DislikeBtn.kt
index 89eab0a7..04246828 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/DislikeBtn.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/DislikeBtn.kt
@@ -36,6 +36,7 @@ import androidx.constraintlayout.compose.ConstraintLayout
 import com.huanchengfly.tieba.post.R
 import com.huanchengfly.tieba.post.api.models.protos.personalized.DislikeReason
 import com.huanchengfly.tieba.post.api.models.protos.personalized.ThreadPersonalized
+import com.huanchengfly.tieba.post.arch.ImmutableHolder
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
 import com.huanchengfly.tieba.post.ui.widgets.compose.ClickMenu
 import com.huanchengfly.tieba.post.ui.widgets.compose.VerticalGrid
@@ -44,12 +45,13 @@ import com.huanchengfly.tieba.post.ui.widgets.compose.rememberMenuState
 
 @Composable
 fun Dislike(
-    personalized: ThreadPersonalized,
-    onDislike: (clickTime: Long, reasons: List<DislikeReason>) -> Unit,
+    personalized: ImmutableHolder<ThreadPersonalized>,
+    onDislike: (clickTime: Long, reasons: List<ImmutableHolder<DislikeReason>>) -> Unit,
 ) {
     var clickTime by remember { mutableStateOf(0L) }
-    val selectedReasons = remember { mutableStateListOf<DislikeReason>() }
+    val selectedReasons = remember { mutableStateListOf<ImmutableHolder<DislikeReason>>() }
     val menuState = rememberMenuState()
+    val dislikeResource = personalized.getImmutableList { dislikeResource }
     ClickMenu(
         menuState = menuState,
         menuContent = {
@@ -109,8 +111,8 @@ fun Dislike(
                     verticalArrangement = Arrangement.spacedBy(4.dp),
                 ) {
                     items(
-                        items = personalized.dislikeResource,
-                        span = { if (it.dislikeId == 7) 2 else 1 }
+                        items = dislikeResource,
+                        span = { if (it.get { dislikeId } == 7) 2 else 1 }
                     ) {
                         val backgroundColor by animateColorAsState(
                             targetValue = if (selectedReasons.contains(it)) ExtendedTheme.colors.accent else ExtendedTheme.colors.chip
@@ -119,7 +121,7 @@ fun Dislike(
                             targetValue = if (selectedReasons.contains(it)) ExtendedTheme.colors.onAccent else ExtendedTheme.colors.onChip
                         )
                         Text(
-                            text = it.dislikeReason,
+                            text = it.get { dislikeReason },
                             modifier = Modifier
                                 .fillMaxWidth()
                                 .clip(RoundedCornerShape(6.dp))
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedPage.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedPage.kt
index fc9027d0..2671256c 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedPage.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedPage.kt
@@ -216,12 +216,12 @@ fun PersonalizedPage(
 @Composable
 private fun FeedList(
     dataProvider: () -> List<ImmutableHolder<ThreadInfo>>,
-    personalizedDataProvider: () -> List<ThreadPersonalized>,
+    personalizedDataProvider: () -> List<ImmutableHolder<ThreadPersonalized>>,
     refreshPositionProvider: () -> Int,
     hiddenThreadIdsProvider: () -> List<Long>,
     onItemClick: (ThreadInfo) -> Unit,
     onAgree: (ThreadInfo) -> Unit,
-    onDislike: (ThreadInfo, Long, List<DislikeReason>) -> Unit,
+    onDislike: (ThreadInfo, Long, List<ImmutableHolder<DislikeReason>>) -> Unit,
     onRefresh: () -> Unit,
     state: LazyStaggeredGridState,
 ) {
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedViewModel.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedViewModel.kt
index e7737479..200477e6 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedViewModel.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedViewModel.kt
@@ -62,7 +62,8 @@ class PersonalizedViewModel @Inject constructor() :
                 .map<PersonalizedResponse, PersonalizedPartialChange.Refresh> {
                     PersonalizedPartialChange.Refresh.Success(
                         data = it.toData(),
-                        threadPersonalizedData = it.data_?.thread_personalized ?: emptyList(),
+                        threadPersonalizedData = (it.data_?.thread_personalized
+                            ?: emptyList()).wrapImmutable(),
                     )
                 }
                 .onStart { emit(PersonalizedPartialChange.Refresh.Start) }
@@ -74,7 +75,8 @@ class PersonalizedViewModel @Inject constructor() :
                     PersonalizedPartialChange.LoadMore.Success(
                         currentPage = page,
                         data = it.toData(),
-                        threadPersonalizedData = it.data_?.thread_personalized ?: emptyList(),
+                        threadPersonalizedData = (it.data_?.thread_personalized
+                            ?: emptyList()).wrapImmutable(),
                     )
                 }
                 .onStart { emit(PersonalizedPartialChange.LoadMore.Start) }
@@ -84,10 +86,10 @@ class PersonalizedViewModel @Inject constructor() :
             TiebaApi.getInstance().submitDislikeFlow(
                 DislikeBean(
                     threadId.toString(),
-                    reasons.joinToString(",") { it.dislikeId.toString() },
+                    reasons.joinToString(",") { it.get { dislikeId }.toString() },
                     forumId?.toString(),
                     clickTime,
-                    reasons.joinToString(",") { it.extra },
+                    reasons.joinToString(",") { it.get { extra } },
                 )
             ).map<CommonResponse, PersonalizedPartialChange.Dislike> { PersonalizedPartialChange.Dislike.Success(threadId) }
                 .catch { emit(PersonalizedPartialChange.Dislike.Failure(threadId, it)) }
@@ -125,7 +127,7 @@ sealed interface PersonalizedUiIntent : UiIntent {
     data class Dislike(
         val forumId: Long?,
         val threadId: Long,
-        val reasons: List<DislikeReason>,
+        val reasons: List<ImmutableHolder<DislikeReason>>,
         val clickTime: Long
     ) : PersonalizedUiIntent
 }
@@ -256,7 +258,7 @@ sealed interface PersonalizedPartialChange : PartialChange<PersonalizedUiState>
 
         data class Success(
             val data: List<ImmutableHolder<ThreadInfo>>,
-            val threadPersonalizedData: List<ThreadPersonalized>,
+            val threadPersonalizedData: List<ImmutableHolder<ThreadPersonalized>>,
         ) : Refresh()
 
         data class Failure(
@@ -282,7 +284,7 @@ sealed interface PersonalizedPartialChange : PartialChange<PersonalizedUiState>
         data class Success(
             val currentPage: Int,
             val data: List<ImmutableHolder<ThreadInfo>>,
-            val threadPersonalizedData: List<ThreadPersonalized>,
+            val threadPersonalizedData: List<ImmutableHolder<ThreadPersonalized>>,
         ) : LoadMore()
 
         data class Failure(
@@ -297,7 +299,7 @@ data class PersonalizedUiState(
     val isLoadingMore: Boolean = false,
     val currentPage: Int = 1,
     val data: List<ImmutableHolder<ThreadInfo>> = emptyList(),
-    val threadPersonalizedData: List<ThreadPersonalized> = emptyList(),
+    val threadPersonalizedData: List<ImmutableHolder<ThreadPersonalized>> = emptyList(),
     val hiddenThreadIds: List<Long> = emptyList(),
     val refreshPosition: Int = 0,
 ): UiState
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/FeedCard.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/FeedCard.kt
index f4d8fc70..78630d53 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/FeedCard.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/FeedCard.kt
@@ -85,7 +85,7 @@ private val ImmutableHolder<Media>.url: String
 
 @Composable
 private fun DefaultUserHeader(
-    user: User,
+    user: ImmutableHolder<User>,
     time: Int,
     content: @Composable RowScope.() -> Unit
 ) {
@@ -93,7 +93,7 @@ private fun DefaultUserHeader(
     UserHeader(
         avatar = {
             Avatar(
-                data = StringUtil.getAvatarUrl(user.portrait),
+                data = user.get { StringUtil.getAvatarUrl(portrait) },
                 size = Sizes.Small,
                 contentDescription = null
             )
@@ -102,8 +102,8 @@ private fun DefaultUserHeader(
             Text(
                 text = StringUtil.getUsernameAnnotatedString(
                     context = LocalContext.current,
-                    username = user.name,
-                    nickname = user.nameShow,
+                    username = user.get { name },
+                    nickname = user.get { nameShow },
                     color = LocalContentColor.current
                 ),
                 color = ExtendedTheme.colors.text
@@ -112,8 +112,8 @@ private fun DefaultUserHeader(
         onClick = {
             UserActivity.launch(
                 context,
-                user.id.toString(),
-                StringUtil.getAvatarUrl(user.portrait)
+                user.get { id }.toString(),
+                user.get { StringUtil.getAvatarUrl(portrait) }
             )
         },
         desc = {
@@ -315,8 +315,8 @@ fun FeedCard(
 ) {
     Card(
         header = {
-            val author = item.get { author }
-            if (author != null) {
+            if (item.isNotNull { author }) {
+                val author = item.getImmutable { author!! }
                 DefaultUserHeader(
                     user = author,
                     time = item.get { lastTimeInt }) { dislikeAction() }
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/utils/StringUtil.kt b/app/src/main/java/com/huanchengfly/tieba/post/utils/StringUtil.kt
index 0957d0aa..4c70d57e 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/utils/StringUtil.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/utils/StringUtil.kt
@@ -8,6 +8,7 @@ import android.text.Spanned
 import android.text.TextUtils
 import android.text.style.ForegroundColorSpan
 import android.widget.TextView
+import androidx.compose.runtime.Stable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
@@ -90,6 +91,7 @@ object StringUtil {
         return nickname ?: ""
     }
 
+    @Stable
     fun getUsernameAnnotatedString(
         context: Context,
         username: String,
@@ -110,6 +112,7 @@ object StringUtil {
     }
 
     @JvmStatic
+    @Stable
     fun getAvatarUrl(portrait: String?): String {
         if (portrait.isNullOrEmpty()) {
             return ""
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8ff5586e..6b8cef6a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -175,7 +175,8 @@
     <string name="toast_play_failed">播放失败</string>
     <string name="toast_cannot_view">抱歉，当前暂时无法浏览本吧</string>
     <string name="tip_thread_item">第 %1$s 楼 %2$s</string>
-    <string name="text_ip_location">来自%1$s</string>
+    <string name="text_ip_location">来自%s</string>
+    <string name="tip_post_floor">第 %d 楼</string>
     <string name="tip_floor_more_count">查看更多回复(%1$s)</string>
     <string name="update_tip_title">发现新版本 %1$s(%2$s)</string>
     <string name="update_tip_header">更新 · %1$s</string>