Hum, or a bit of a spin, an idea we joked around about a while ago, but would actually be pretty cool...
what about post of the month. Like at the bottom left of each person's post, where there's the Online/Offline bubble, and the Report Button, have another button for nominating that post for post of the month. At the end of the month, whichever post gets the most nominations should have that post showcased somewhere or something.
Or not. lol