I realize those threads, and others they link to in turn, are rather lengthy, so I don't expect you to have read them all exhaustively; but I get the impression you only read the root nodes. If you read the threads, you find that the consensus is opposed to your (and your predecessors') proposition. In particular, it gets virtually no support from the site policy makers and the site programmers, so it should come as no surprise that nothing has been done about it. Update: see tye's response below.

Perhaps we need a section of "topics...

That's also not likely to happen. See the FAQ: I think there should be a new Section on PerlMonks for Jobs/Modules/Quizzes/Perl6/Newbies/OffTopic/etc.

> > > > What we really need is a workable keyword tagging system. We have keywords, but for some reason, the gods consider it to be a security hazard, or something, so it hasn't been enabled for non-special users.