Just a small suggestion, in an attempt to get kill that eternal plague that is Site Suggestions on signing of Antipoints.

When creating a thread in site suggestions, how about a pop up, which states which topics are no longer open to discussion, like the signing of Antipoints topic.

This would help notify the users who don't know if its already been discussed (ie, new / lazy / stupid), so that we don't get previously suggested suggestions re-appearing every week.