diff --git a/app/policies/comment_policy.rb b/app/policies/comment_policy.rb
index d9219624..acd9ff2d 100644
--- a/app/policies/comment_policy.rb
+++ b/app/policies/comment_policy.rb
@@ -10,7 +10,7 @@ def show?
   end
 
   def create?
-    if Array.wrap(record).compact.any? { |a| a.section == 'zooniverse' }
+    if Array.wrap(record).compact.any? { |c| c.discussion.board.section == 'zooniverse' }
       logged_in? && !locked? && writable? && of_posting_age?
     else
       logged_in? && !locked? && writable?
diff --git a/app/policies/discussion_policy.rb b/app/policies/discussion_policy.rb
index 91f16424..47d1c1c5 100644
--- a/app/policies/discussion_policy.rb
+++ b/app/policies/discussion_policy.rb
@@ -10,7 +10,11 @@ def show?
   end
 
   def create?
-    writable?
+    if Array.wrap(record).compact.any? { |d| d.board.section == 'zooniverse' }
+      writable? && of_posting_age?
+    else
+      writable?
+    end
   end
 
   def update?
diff --git a/spec/policies/discussion_policy_spec.rb b/spec/policies/discussion_policy_spec.rb
index c64532c6..9c200d4e 100644
--- a/spec/policies/discussion_policy_spec.rb
+++ b/spec/policies/discussion_policy_spec.rb
@@ -19,6 +19,14 @@
       it_behaves_like 'a policy forbidding', :update, :destroy
     end
 
+    context 'with a brand new user' do
+      ENV['POSTING_AGE_REQUIREMENT'] = '24'
+      let(:user){ create :user, created_at: Time.now }
+      let(:board){ create :board, section: 'zooniverse', permissions: { read: 'all', write: 'all' } }
+      it_behaves_like 'a policy permitting', :index, :show
+      it_behaves_like 'a policy forbidding', :create, :update, :destroy
+    end
+
     context 'with the owner' do
       let(:user){ record.user }
       it_behaves_like 'a policy permitting', :index, :show, :create, :update