I've seen on some other sites that when someone gives useful or bad info, you can rate them on what they tell you. It's more of a "for fun" thing to have bragging rights kinda. Maybe just put the bar under the join date, location, etc on the upper right. Green would represent good feedback/help and red would obviously be bad.. I dunno.. Just a thought. Here is a picture of what i'm talking about..bar is circled in red.