Thread:Feedback/Summary tagging

LiquidThreads fixes a lot of longstanding problems with MediaWiki-based discussion; one area that I think could benefit more is the retrieving of information from old discussions. While the search function is nice (the same could be done before by intitle: searches, bu that was inaccessible to the average user), it still leaves finding old discussions where one does not remember the exact location or any good search words.

A possible solution for that would be the tagging of thread summaries. Tagging is very flexible, integrates well into a search system, can be used both for searching and browsing, and it is easy to build community processes around it (think tags like 'todo' or 'troll' or 'needs admin'). It is a bit difficult in multilanguage environments, but then, what isn't? I think it would help a lot in navigating archives.