Trolls are reinforcing the bubble by "proving" that everyone outside of it is purely an asshole with no intent to have a conversation, merely to insult and ridicule and try to cause people to leave the forum.
The problem is the labeling of them as trolls, is what I meant.
There is no such thing as trolls, that person you call a troll is making a joke or making a point and you're too far inside your own bubble to not call them an asshole.
There are people in the set of "others" who very much deserve harassment and ridicule--consider people actively working against the common good, like Scientologists or other online trolls or robber barons or city bosses.
"If you don't agree with the person who made this video why are you posting here?!?! Get a life troll!"
Trolls is the heroes of the internet, the diversity.