I recently noticed a member that had 4 negative feedbacks. I asked why the hell was he still a member and was told, that is the way it is on here now. WTF?
There isn't now, nor has there ever been, a rule regarding getting banned at any given number of negative feedbacks. On the contrary, isn't that what the feedback system is for? Let's say a user has 3 negative feedbacks. What does banning them really do? It's not like getting banned from ODT makes you incapable of a buying/selling/trading guns anywhere, so you may very likely run into them elsewhere and not know you're dealing with a guy that earned those 3 negs. Leave it, and the feedback system does what it's supposed to do and they're right there for you to see.