No thanks to a karma system, certainly not for a forum like this. One thing noticeably absent from this forum is the typical forum nerd herd who roll about the place "policing" it while backing each other up and basking in their own echo chamber. It's been a forum trope for 20 years or more and karma systems feed them.

Also, unpopular people sometimes still make good points and funny well liked people talk crap. Is it really that hard to judge an argument on it's merits?