I'm curious, where do you draw the line between acceptable negative opinion about something and trolling? Personally if someone is willing to stand there and defend their opinion as long as it isn't totally ridiculous then I think it's not trolling. It can be a stupid opinion based on false information, but if they have actual reasons for it then I don't see it as trolling.
It doesn't matter where I draw the line. What matters is where you all draw the line. Unfortunately that seems to vary and is certainly very slack at th moment. If anyone looked at some past ban posts/threads and compared those to what now seems fine, they would see a huge change.