I think it's a good idea, depending on how it works. I wasn't around when it was implemented to begin with, and I don't know how the original functioned, if it functioned at all. I do, however think it would be an interesting thing to try, and it would probably improve behavior, as long as it's handled well. However, depending on how it works, say people vote up or down on a post or something, then it might get out of hand on the more controversial topics. On the side, I think it's at least worth a shot, and it sounds like fun.