I would love to see a few subforums dedicated to libraries only. Much like the Software->Development area, but dedicated and kept clean by a moderator so that every thread is exactly talking about just one topic (or rather one library).
I would propose a structure like
Arduino Foum
Libraries
Discussion
Requests (or Questions or whatever)
That way we could finally have all the various (active) Library discussions in one place making it easier to browse for them.