diff --git a/app/models/user_summary.rb b/app/models/user_summary.rb
index c5e4c93fee0..8156afcc419 100644
--- a/app/models/user_summary.rb
+++ b/app/models/user_summary.rb
@@ -88,7 +88,13 @@ class UserSummary
       .joins(
         "JOIN posts replies ON posts.topic_id = replies.topic_id AND posts.reply_to_post_number = replies.post_number",
       )
-      .where("replies.user_id <> ?", @user.id)
+      .joins(
+        "JOIN topics ON replies.topic_id = topics.id AND topics.archetype <> 'private_message'",
+      )
+      .joins(
+        "AND replies.post_type IN (#{Topic.visible_post_types(@user, include_moderator_actions: false).join(",")})",
+      )
+      .where("replies.user_id <> posts.user_id")
       .group("replies.user_id")
       .order("COUNT(*) DESC")
       .limit(MAX_SUMMARY_RESULTS)
diff --git a/spec/models/user_summary_spec.rb b/spec/models/user_summary_spec.rb
index 128a801b4aa..9146341fea4 100644
--- a/spec/models/user_summary_spec.rb
+++ b/spec/models/user_summary_spec.rb
@@ -90,4 +90,45 @@ RSpec.describe UserSummary do
     expect(summary.top_categories.first[:topic_count]).to eq(1)
     expect(summary.top_categories.first[:post_count]).to eq(1)
   end
+
+  it "returns the most replied to users" do
+    topic1 = create_post.topic
+    topic1_post = create_post(topic: topic1)
+    topic1_reply =
+      create_post(topic: topic1, reply_to_post_number: topic1_post.post_number, user: topic1.user)
+
+    # Create a second topic by the same user as topic1
+    topic2 = create_post(user: topic1.user).topic
+    topic2_post = create_post(topic: topic2)
+    topic2_reply =
+      create_post(topic: topic2, reply_to_post_number: topic2_post.post_number, user: topic2.user)
+
+    # Don't include replies to whispers
+    topic3 = create_post(user: topic1.user).topic
+    topic3_post = create_post(topic: topic3, post_type: Post.types[:whisper])
+    topic3_reply =
+      create_post(topic: topic3, reply_to_post_number: topic3_post.post_number, user: topic3.user)
+
+    # Don't include replies to private messages
+    replied_to_user = Fabricate(:user)
+    topic4 =
+      create_post(
+        user: topic1.user,
+        archetype: Archetype.private_message,
+        target_usernames: [replied_to_user.username],
+      ).topic
+    topic4_post = create_post(topic: topic4, user: replied_to_user)
+    topic4_reply =
+      create_post(topic: topic4, reply_to_post_number: topic4_post.post_number, user: topic4.user)
+
+    user_summary = UserSummary.new(topic1.user, Guardian.new(topic1.user))
+    most_replied_to_users = user_summary.most_replied_to_users
+
+    counts =
+      most_replied_to_users
+        .index_by { |user_with_count| user_with_count[:id] }
+        .transform_values { |c| c[:count] }
+
+    expect(counts).to eq({ topic1_post.user_id => 1, topic2_post.user_id => 1 })
+  end
 end