Honestly I think it boils down to the fact that in any group the people that have the most misplaced anger in their lives will be the loudest yellers. Thats why there are and always will be anger mobs around public figures. When they lash out it pisses off more people (whether they agree or disagree) and the cycle continues. Thats why I try to stay out of drama.

If someone fucks up then I voice my specific concern to them (and not demand that their friends that have nothing to do with it ostracize them) and then I see if they learn and grow. If they dont then I just stop watching them. It really doesnt need to be any more complicated than that in my opinion.

If people mobbed all my friends to never speak to me everytime I said something stupid that would be hell and I'd just become a bitter asshole and never learn from my mistakes.