Guaranteed evaluation to status-*
tag for open feature-requests at respective per site meta in one or two months.
Users having substantial experience of access to (almost) full privileges after 20K are likely to be interested in features worth considering.
Attention to their requests would show that Stack Exchange listens to their communitylistens to their community.
Requirement for request to stay open to be eligible is primarily in order to prevent temptation of reposting prior popular requests to "force" their evaluation. (Reopening of incorrectly closed or clarified question should probably reset the "evaluation timer".)
Also, to keep system stable:
- there should be some kind of rate limiting, something like one (or two, or four) eligible requests a year
- eligible questions should have feature-request tag from the very beginning, to avoid complications related to retagging, in a way similar to how it is done for dupehammer.