(See drupal.stackexchange.com)

Users can go to meta.drupal.stackexchange.com to have conversations about the core Q&A site (e.g,. a support question like "How do I bump an answer" or a suggestion like "Don't allow any tag containing 'drupal'").

Comments

chipcleary’s picture

chipcleary commented

(See answers.yahoo.com)

Yahoo provides a "Yahoo Answers Suggestion Board". Comments that have been reviewed by Yahoo staff are flagged. Others can comment on your suggestion (not a threaded list but a straight list)