Banning suspected undercover chuds absolutely serves a purpose. It makes it harder for them to hide what they're doing. People absolutely will pretend to be one of us then once a drama kicks off they'll go in to splitter mode. If someone is doing wrecker behavior on a new account - its really obvious what they're doing. If they're doing wrecker shit on a months old account with a lot of activity then it becomes a lot more difficult to tell if they're sabotaging or just dumb.