Frankly, these forums aren't very inviting. A more open and clean forum would be conducive to increased activity and who knows where that would lead.
90% of internet forums list the user's post count but don't include any sort of rating system. BB is special :p
But seriously, I don't see the necessity in any rating scheme. Every scheme is flawed.
I'm still here lol! I can feel the fanboys pulling out their hair:) I sence a "giff back negative rating chance, it's all I do while browsing forums" suggestion coming soon!!!