Like, StackExchange admins: If you're getting flags, there's offensive material, the comments are blatantly off-topic, etc., then OK, I get that; you can step in and moderate. But that's a tiny fraction of the time. When people are having a normal discussion that turns out to be long, maybe don't be a jerk who deletes all the comments from that post and tells people to go somewhere else? It kills the entire discussion, mood, and everyone's enthusiasm, along with lots of gems that were in the comments but that wouldn't fit inside any answers. You really expect the community to turn out happy and welcoming when you keep punching all the breaths out of the users and kicking them to some other corner just because more than 5 of them decided to commit the sin of commenting and sharing thoughts on a topic?