diff --git a/app/controllers/stories_controller.rb b/app/controllers/stories_controller.rb
index cc2fe2fdc..89baa8fe1 100644
--- a/app/controllers/stories_controller.rb
+++ b/app/controllers/stories_controller.rb
@@ -268,6 +268,7 @@ class StoriesController < ApplicationController
     end
 
     @comments_to_show_count = @article.cached_tag_list_array.include?("discuss") ? 50 : 30
+    @comments_to_show_count = 15 unless user_signed_in?
     set_article_json_ld
     assign_co_authors
     @comment = Comment.new(body_markdown: @article&.comment_template)
diff --git a/app/decorators/article_decorator.rb b/app/decorators/article_decorator.rb
index b287682f7..104fbcf5c 100644
--- a/app/decorators/article_decorator.rb
+++ b/app/decorators/article_decorator.rb
@@ -33,10 +33,6 @@ class ArticleDecorator < ApplicationDecorator
     end
   end
 
-  def comments_to_show_count
-    cached_tag_list_array.include?("discuss") ? 75 : 25
-  end
-
   def cached_tag_list_array
     (cached_tag_list || "").split(", ")
   end
diff --git a/app/decorators/podcast_episode_decorator.rb b/app/decorators/podcast_episode_decorator.rb
index c70763a67..b3bf1b732 100644
--- a/app/decorators/podcast_episode_decorator.rb
+++ b/app/decorators/podcast_episode_decorator.rb
@@ -1,8 +1,4 @@
 class PodcastEpisodeDecorator < ApplicationDecorator
-  def comments_to_show_count
-    cached_tag_list_array.include?("discuss") ? 75 : 25
-  end
-
   # this method exists because podcast episodes are "commentables"
   # and in some parts of the code we assume they have this method,
   # but podcast episodes don't have a cached_tag_list like articles do
diff --git a/app/helpers/comments_helper.rb b/app/helpers/comments_helper.rb
index 9b802c13b..c1f6735c3 100644
--- a/app/helpers/comments_helper.rb
+++ b/app/helpers/comments_helper.rb
@@ -2,6 +2,34 @@ module CommentsHelper
   MAX_COMMENTS_TO_RENDER = 250
   MIN_COMMENTS_TO_RENDER = 8
 
+  def any_negative_comments?(commentable)
+    commentable.comments.where("score < 0").any?
+  end
+
+  def any_hidden_negative_comments?(commentable)
+    !user_signed_in? && any_negative_comments?(commentable)
+  end
+
+  def all_comments_visible?(commentable)
+    !(commentable.any_comments_hidden || any_hidden_negative_comments?(commentable))
+  end
+
+  def article_comment_tree(article, count, order)
+    @article_comment_tree ||= begin
+      collection = Comment.tree_for(article, count, order)
+      collection.reject! { |comment| comment.score.negative? } unless user_signed_in?
+      collection
+    end
+  end
+
+  def podcast_comment_tree(episode)
+    @podcast_comment_tree ||= begin
+      collection = Comment.tree_for(episode, 12)
+      collection.reject! { |comment| comment.score.negative? } unless user_signed_in?
+      collection
+    end
+  end
+
   def comment_class(comment, is_view_root: false)
     if comment.root? || is_view_root
       "root"
diff --git a/app/views/articles/_comments_actions.html.erb b/app/views/articles/_comments_actions.html.erb
index 5e8232494..399c33309 100644
--- a/app/views/articles/_comments_actions.html.erb
+++ b/app/views/articles/_comments_actions.html.erb
@@ -7,9 +7,10 @@
     </div>
   <% end %>
 
-  <% if @article.any_comments_hidden %>
+  <% unless all_comments_visible?(@article) %>
     <p class="fs-s color-base-60 mb-4">
-      <%= t("views.comments.hidden.text_html", info: link_to(t("views.comments.hidden.info"), "/faq")) %>
+      <%= t("views.comments.visible_signed_in.text_html", sign_in: link_to(t("views.comments.visible_signed_in.sign_in"), "/enter")) if any_hidden_negative_comments?(@article) %>
+      <%= t("views.comments.hidden.text_html", info: link_to(t("views.comments.hidden.info"), "/faq")) if @article.any_comments_hidden %>
     </p>
   <% end %>
 
diff --git a/app/views/articles/_full_comment_area.html.erb b/app/views/articles/_full_comment_area.html.erb
index a87976789..eff71ad69 100644
--- a/app/views/articles/_full_comment_area.html.erb
+++ b/app/views/articles/_full_comment_area.html.erb
@@ -55,7 +55,10 @@
 
         <div class="comments" id="comment-trees-container">
           <% if @article.comments_count > 0 %>
-            <%= render partial: "articles/comment_tree", collection: Comment.tree_for(@article, @comments_to_show_count, @comments_order), as: :comment_node, cached: proc { |comment, _sub_comments| [comment, @comments_order] } %>
+            <%= render partial: "articles/comment_tree",
+                       collection: article_comment_tree(@article, @comments_to_show_count, @comments_order),
+                       as: :comment_node,
+                       cached: proc { |comment, _sub_comments| [comment, @comments_order, user_signed_in] } %>
           <% end %>
         </div>
       </div>
diff --git a/app/views/podcast_episodes/show.html.erb b/app/views/podcast_episodes/show.html.erb
index 1c601a912..d7e3c9da0 100644
--- a/app/views/podcast_episodes/show.html.erb
+++ b/app/views/podcast_episodes/show.html.erb
@@ -103,7 +103,7 @@
                    commentable: @episode,
                    commentable_type: "PodcastEpisode" %>
         <div class="comment-trees" id="comment-trees-container">
-          <% Comment.tree_for(@episode, 12).each do |comment, sub_comments| %>
+          <% podcast_comment_tree(@episode).each do |comment, sub_comments| %>
             <% cache ["comment_root_#{user_signed_in?}", comment] do %>
               <%= tree_for(comment, sub_comments, @episode) %>
             <% end %>
diff --git a/config/locales/views/comments/en.yml b/config/locales/views/comments/en.yml
index 62afafef4..5f3e4c65d 100644
--- a/config/locales/views/comments/en.yml
+++ b/config/locales/views/comments/en.yml
@@ -35,6 +35,9 @@ en:
         text_html: "&bull; Edited %{on}"
         on_html: on %{date}
       expand: Expand
+      visible_signed_in:
+        text_html: "Some comments may only be visible to logged-in visitors. %{sign_in} to view all comments."
+        sign_in: "Sign in"
       hidden:
         text_html: Some comments have been hidden by the post's author - %{info}
         info: find out more
diff --git a/config/locales/views/comments/fr.yml b/config/locales/views/comments/fr.yml
index e71077662..28423ab9d 100644
--- a/config/locales/views/comments/fr.yml
+++ b/config/locales/views/comments/fr.yml
@@ -35,6 +35,9 @@ fr:
         text_html: "&bull; Edited %{on}"
         on_html: on %{date}
       expand: Expand
+      visible_signed_in:
+        text_html: "Some comments may only be visible to logged-in visitors. %{sign_in} to view all comments."
+        sign_in: "Sign in"
       hidden:
         text_html: Some comments have been hidden by the post's author - %{info}
         info: find out more
diff --git a/spec/decorators/article_decorator_spec.rb b/spec/decorators/article_decorator_spec.rb
index 54cf65b9d..32f38b699 100644
--- a/spec/decorators/article_decorator_spec.rb
+++ b/spec/decorators/article_decorator_spec.rb
@@ -83,18 +83,6 @@ RSpec.describe ArticleDecorator, type: :decorator do
     end
   end
 
-  describe "#comments_to_show_count" do
-    it "returns 25 if does not have a discuss tag" do
-      article.cached_tag_list = ""
-      expect(article.decorate.comments_to_show_count).to eq(25)
-    end
-
-    it "returns 75 if it does have a discuss tag" do
-      article.cached_tag_list = "discuss, python"
-      expect(article.decorate.comments_to_show_count).to eq(75)
-    end
-  end
-
   describe "#cached_tag_list_array" do
     it "returns no tags if the cached tag list is empty" do
       article.cached_tag_list = ""
diff --git a/spec/decorators/podcast_episode_decorator_spec.rb b/spec/decorators/podcast_episode_decorator_spec.rb
index b23ac0882..e46e5cba1 100644
--- a/spec/decorators/podcast_episode_decorator_spec.rb
+++ b/spec/decorators/podcast_episode_decorator_spec.rb
@@ -6,9 +6,9 @@ RSpec.describe PodcastEpisodeDecorator, type: :decorator do
 
     it "serializes both the decorated object IDs and decorated methods" do
       expected_result = {
-        "id" => podcast_episode.id, "comments_to_show_count" => podcast_episode.comments_to_show_count
+        "id" => podcast_episode.id, "published_timestamp" => podcast_episode.published_timestamp
       }
-      expect(podcast_episode.as_json(only: [:id], methods: [:comments_to_show_count])).to eq(expected_result)
+      expect(podcast_episode.as_json(only: [:id], methods: [:published_timestamp])).to eq(expected_result)
     end
 
     it "serializes collections of decorated objects" do
@@ -16,21 +16,9 @@ RSpec.describe PodcastEpisodeDecorator, type: :decorator do
 
       decorated_collection = PodcastEpisode.decorate
       expected_result = [
-        { "id" => podcast_episode.id, "comments_to_show_count" => podcast_episode.comments_to_show_count },
+        { "id" => podcast_episode.id, "published_timestamp" => podcast_episode.published_timestamp },
       ]
-      expect(decorated_collection.as_json(only: [:id], methods: [:comments_to_show_count])).to eq(expected_result)
-    end
-  end
-
-  describe "#comments_to_show_count" do
-    it "returns 25 if does not have a discuss tag" do
-      pe = build(:podcast_episode)
-      expect(pe.decorate.comments_to_show_count).to eq(25)
-    end
-
-    it "returns 75 if it does have a discuss tag" do
-      pe = build(:podcast_episode, tag_list: ["discuss"])
-      expect(pe.decorate.comments_to_show_count).to eq(75)
+      expect(decorated_collection.as_json(only: [:id], methods: [:published_timestamp])).to eq(expected_result)
     end
   end
 
diff --git a/spec/system/articles/user_visits_an_article_spec.rb b/spec/system/articles/user_visits_an_article_spec.rb
index 5e856a332..c8d8eea8e 100644
--- a/spec/system/articles/user_visits_an_article_spec.rb
+++ b/spec/system/articles/user_visits_an_article_spec.rb
@@ -15,9 +15,16 @@ RSpec.describe "Views an article", type: :system do
     expect(page).to have_content(article.title)
   end
 
-  it "shows comments", js: true do
-    create_list(:comment, 3, commentable: article)
+  it "shows non-negative comments", js: true do
+    comments = create_list(:comment, 4, commentable: article)
+    admin = create(:user, :admin)
+    create(:thumbsdown_reaction, reactable: comments.last, user: admin)
+    sidekiq_perform_enqueued_jobs
 
+    visit article.path
+    expect(page).to have_selector(".single-comment-node", visible: :visible, count: 4)
+
+    sign_out user
     visit article.path
     expect(page).to have_selector(".single-comment-node", visible: :visible, count: 3)
   end