And really screw Criterion A (Nah just joking) (I didn't get it for the longest time - like you get beaten and sexually abused before school, you stop your father from killing one of your siblings, you go to school you come back and stop your father from killing your mother, then you stay up most of the night trying to prevent sexual abuse of your siblings, you endure constant threats and fear of death - isn't Criterion A just everyone's lived experience in a nuclear family?) And by a type of osmosis I now understand Criterion A, I think that is a good thing.
Someone profoundly wise (No, not me! ;) ) said once there are two types of people in the world those that love Star Trek and those that don't, and then there are the trolls, which both Star Trek fans and non Star Trek fans have to deal with. I think we even aim to be kind to the Star Wars fans (it is not their fault George Lucas isn't sensible enough to hire scriptwriters.) But feeding the trolls - I would often go and say on our forum "Please people, Don't Feed The Trolls!" and sometimes they would stop reacting. Another one is "It is a rich tapestry!" and if people don't feed the trolls by responding, over reacting or commenting they actually go away in the end. I was on one forum - people would troll and they wouldn't even get one comment. Everyone would read the post and go "Oh a troll!" and continue onwards with the conversation.
Being banned is a form of containment - it is direct communication that your behaviour is unacceptable. You can have sympathy for a person who loses their rag on a mental health forum - yeah we all get it, but to start to be tolerant of troll like behaviour you open pandora's box.
(Equally important are the ABBA/Disco Fans and those that are not ABBA/Disco Fans but that is for another discussion.)