perhaps there should some sort of limits to unlock awards in RPs? RP Post count, Time since RP start, RP finish, etc? The more numerous posts, longer duration etc. an RP has, the more awards a GM "unlocks"?

If its all free from the start, you'll start getting people creating filler RPs simply to get themselves awards.

Parameters should probably vary a bit between free, casual and advanced, but not sure entirely how, or how much.

and to open a dangerous, but somewhat important, can of worms:
Whats to stop GMs from things like "[i]n[/i]+ trophies required to join"?