diff --git a/packages/bsky/src/api/app/bsky/feed/getAuthorFeed.ts b/packages/bsky/src/api/app/bsky/feed/getAuthorFeed.ts
index b7cd668c996..15305b00a99 100644
--- a/packages/bsky/src/api/app/bsky/feed/getAuthorFeed.ts
+++ b/packages/bsky/src/api/app/bsky/feed/getAuthorFeed.ts
@@ -93,10 +93,7 @@ const hydration = async (inputs: {
   const [feedPostState, profileViewerState = {}] = await Promise.all([
     ctx.hydrator.hydrateFeedItems(skeleton.items, params.viewer),
     params.viewer
-      ? ctx.hydrator.actor.getProfileViewerStates(
-          [skeleton.actor.did],
-          params.viewer,
-        )
+      ? ctx.hydrator.hydrateProfileViewers([skeleton.actor.did], params.viewer)
       : undefined,
   ])
   return mergeStates(feedPostState, profileViewerState)
diff --git a/packages/bsky/src/api/app/bsky/graph/getRelationships.ts b/packages/bsky/src/api/app/bsky/graph/getRelationships.ts
index d0fc43d53ab..47aaa6cd083 100644
--- a/packages/bsky/src/api/app/bsky/graph/getRelationships.ts
+++ b/packages/bsky/src/api/app/bsky/graph/getRelationships.ts
@@ -14,7 +14,10 @@ export default function (server: Server, ctx: AppContext) {
           },
         }
       }
-      const res = await ctx.hydrator.actor.getProfileViewerStates(others, actor)
+      const res = await ctx.hydrator.actor.getProfileViewerStatesNaive(
+        others,
+        actor,
+      )
       const relationships = others.map((did) => {
         const subject = res.get(did)
         return subject
diff --git a/packages/bsky/src/data-plane/server/routes/relationships.ts b/packages/bsky/src/data-plane/server/routes/relationships.ts
index c877c1112f3..d6029e169e8 100644
--- a/packages/bsky/src/data-plane/server/routes/relationships.ts
+++ b/packages/bsky/src/data-plane/server/routes/relationships.ts
@@ -26,8 +26,6 @@ export default (db: Database): Partial<ServiceImpl<typeof Service>> => ({
         db.db
           .selectFrom('list_item')
           .innerJoin('list_mute', 'list_mute.listUri', 'list_item.listUri')
-          .innerJoin('list', 'list.uri', 'list_item.listUri')
-          .where('list.purpose', '=', 'app.bsky.graph.defs#modlist')
           .where('list_mute.mutedByDid', '=', actorDid)
           .whereRef('list_item.subjectDid', '=', ref('actor.did'))
           .select('list_item.listUri')
@@ -47,8 +45,6 @@ export default (db: Database): Partial<ServiceImpl<typeof Service>> => ({
         db.db
           .selectFrom('list_item')
           .innerJoin('list_block', 'list_block.subjectUri', 'list_item.listUri')
-          .innerJoin('list', 'list.uri', 'list_item.listUri')
-          .where('list.purpose', '=', 'app.bsky.graph.defs#modlist')
           .where('list_block.creator', '=', actorDid)
           .whereRef('list_item.subjectDid', '=', ref('actor.did'))
           .select('list_item.listUri')
@@ -56,8 +52,6 @@ export default (db: Database): Partial<ServiceImpl<typeof Service>> => ({
         db.db
           .selectFrom('list_item')
           .innerJoin('list_block', 'list_block.subjectUri', 'list_item.listUri')
-          .innerJoin('list', 'list.uri', 'list_item.listUri')
-          .where('list.purpose', '=', 'app.bsky.graph.defs#modlist')
           .where('list_item.subjectDid', '=', actorDid)
           .whereRef('list_block.creator', '=', ref('actor.did'))
           .select('list_item.listUri')
diff --git a/packages/bsky/src/hydration/actor.ts b/packages/bsky/src/hydration/actor.ts
index f340221067d..de032468c22 100644
--- a/packages/bsky/src/hydration/actor.ts
+++ b/packages/bsky/src/hydration/actor.ts
@@ -106,7 +106,10 @@ export class ActorHydrator {
     }, new HydrationMap<Actor>())
   }
 
-  async getProfileViewerStates(
+  // "naive" because this method does not verify the existence of the list itself
+  // a later check in the main hydrator will remove list uris that have been deleted or
+  // repurposed to "curate lists"
+  async getProfileViewerStatesNaive(
     dids: string[],
     viewer: string,
   ): Promise<ProfileViewerStates> {
diff --git a/packages/bsky/src/hydration/hydrator.ts b/packages/bsky/src/hydration/hydrator.ts
index f6b70f7173a..d7ead860336 100644
--- a/packages/bsky/src/hydration/hydrator.ts
+++ b/packages/bsky/src/hydration/hydrator.ts
@@ -86,6 +86,33 @@ export class Hydrator {
     this.label = new LabelHydrator(dataplane, opts)
   }
 
+  // app.bsky.actor.defs#profileView
+  // - profile viewer
+  //   - list basic
+  // Note: builds on the naive profile viewer hydrator and removes references to lists that have been deleted
+  async hydrateProfileViewers(
+    dids: string[],
+    viewer: string,
+  ): Promise<HydrationState> {
+    const profileViewers = await this.actor.getProfileViewerStatesNaive(
+      dids,
+      viewer,
+    )
+    const listUris: string[] = []
+    profileViewers?.forEach((item) => {
+      listUris.push(...listUrisFromProfileViewer(item))
+    })
+    const listState = await this.hydrateListsBasic(listUris, viewer)
+    // if a list no longer exists or is not a mod list, then remove from viewer state
+    profileViewers?.forEach((item) => {
+      removeNonModListsFromProfileViewer(item, listState)
+    })
+    return mergeStates(listState, {
+      profileViewers,
+      viewer,
+    })
+  }
+
   // app.bsky.actor.defs#profileView
   // - profile
   //   - list basic
@@ -94,20 +121,14 @@ export class Hydrator {
     viewer: string | null,
     includeTakedowns = false,
   ): Promise<HydrationState> {
-    const [actors, labels, profileViewers] = await Promise.all([
+    const [actors, labels, profileViewersState] = await Promise.all([
       this.actor.getActors(dids, includeTakedowns),
       this.label.getLabelsForSubjects(labelSubjectsForDid(dids)),
-      viewer ? this.actor.getProfileViewerStates(dids, viewer) : undefined,
+      viewer ? this.hydrateProfileViewers(dids, viewer) : undefined,
     ])
-    const listUris: string[] = []
-    profileViewers?.forEach((item) => {
-      listUris.push(...listUrisFromProfileViewer(item))
-    })
-    const listState = await this.hydrateListsBasic(listUris, viewer)
-    return mergeStates(listState, {
+    return mergeStates(profileViewersState ?? {}, {
       actors,
       labels,
-      profileViewers,
       viewer,
     })
   }
@@ -563,9 +584,37 @@ const listUrisFromProfileViewer = (item: ProfileViewerState | null) => {
   if (item?.blockingByList) {
     listUris.push(item.blockingByList)
   }
+  // blocked-by list does not appear in views, but will be used to evaluate the existence of a block between users.
+  if (item?.blockedByList) {
+    listUris.push(item.blockedByList)
+  }
   return listUris
 }
 
+const removeNonModListsFromProfileViewer = (
+  item: ProfileViewerState | null,
+  state: HydrationState,
+) => {
+  if (!isModList(item?.mutedByList, state)) {
+    delete item?.mutedByList
+  }
+  if (!isModList(item?.blockingByList, state)) {
+    delete item?.blockingByList
+  }
+  if (!isModList(item?.blockedByList, state)) {
+    delete item?.blockedByList
+  }
+}
+
+const isModList = (
+  listUri: string | undefined,
+  state: HydrationState,
+): boolean => {
+  if (!listUri) return false
+  const list = state.lists?.get(listUri)
+  return list?.record.purpose === 'app.bsky.graph.defs#modlist'
+}
+
 const labelSubjectsForDid = (dids: string[]) => {
   return [
     ...dids,