There have been a lot of good suggestions (and probably some bad ones) made over the years.
Someone with an eye for detail and a reasonably huge amount of time on their hands should go back through the forums and organize the requests or suggestions.
I would suggest possibly using a "better" knowledge representation medium than AsteroidMeta, actually - maybe the scholium system, once it is complete.
(Indeed, we might CONSIDER porting our AM conversations to the scholium system. This thought should obviously be discussed on a different page.)
The task mentioned here is so potentially long, arduous, and helpful, that it should probably be paid.