diff --git a/lib/guardian.rb b/lib/guardian.rb
index 1b17950d8f4..67496f95b41 100644
--- a/lib/guardian.rb
+++ b/lib/guardian.rb
@@ -97,7 +97,7 @@ class Guardian
   attr_reader :request
 
   def initialize(user = nil, request = nil)
-    @user = user.presence || AnonymousUser.new
+    @user = user.presence || Guardian::AnonymousUser.new
     @request = request
   end
 
@@ -640,12 +640,17 @@ class Guardian
   private
 
   def is_my_own?(obj)
-    if anonymous?
+    # NOTE: This looks strange...but we are checking if someone is posting anonymously
+    # as a AnonymousUser model, _not_ as Guardian::AnonymousUser which is a different thing
+    # used when !authenticated?
+    if authenticated? && is_anonymous?
       return(
         SiteSetting.allow_anonymous_likes? && obj.class == PostAction && obj.is_like? &&
           obj.user_id == @user.id
       )
     end
+
+    return false if anonymous?
     return obj.user_id == @user.id if obj.respond_to?(:user_id) && obj.user_id && @user.id
     return obj.user == @user if obj.respond_to?(:user)
 
diff --git a/spec/lib/guardian_spec.rb b/spec/lib/guardian_spec.rb
index 38a639f304e..4cc3f1a93e6 100644
--- a/spec/lib/guardian_spec.rb
+++ b/spec/lib/guardian_spec.rb
@@ -102,7 +102,7 @@ RSpec.describe Guardian do
     fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
     fab!(:post)
 
-    describe "an anonymous user" do
+    describe "an authenticated user posting anonymously" do
       before { SiteSetting.allow_anonymous_posting = true }
 
       context "when allow_anonymous_likes is enabled" do
@@ -2504,7 +2504,7 @@ RSpec.describe Guardian do
     end
   end
 
-  describe "#can_delete_post_action" do
+  describe "#can_delete_post_action?" do
     before do
       SiteSetting.allow_anonymous_posting = true
       Guardian.any_instance.stubs(:anonymous?).returns(true)
@@ -2512,7 +2512,8 @@ RSpec.describe Guardian do
 
     context "with allow_anonymous_likes enabled" do
       before { SiteSetting.allow_anonymous_likes = true }
-      describe "an anonymous user" do
+
+      describe "an authenticated anonymous user" do
         let(:post_action) do
           user.id = anonymous_user.id
           post.id = 1
@@ -2554,6 +2555,10 @@ RSpec.describe Guardian do
           expect(Guardian.new(anonymous_user).can_delete_post_action?(post_action)).to be_truthy
         end
 
+        it "returns false if the user is an unauthenticated anonymous user" do
+          expect(Guardian.new.can_delete_post_action?(post_action)).to be_falsey
+        end
+
         it "return false if the post belongs to another user" do
           expect(
             Guardian.new(anonymous_user).can_delete_post_action?(other_users_post_action),