I have a suggestion (duh) stolen from something already implement on the shoryuken.com message boards. Ratings. Every poster has a rate up and rate down button below their avatar, below that is the rate meter, represented with coloured pips. More pips, higher rating. The whole point is good posters generally get good ratings from the other members, its a way of letting somebody know they're a valued poster, or a visual cue as to 'who to listen to'. Bad idea? OK ima watch Jericho then.