So some troll/fan of third group/jealous hater/Kpop in general hater posts something like:
"Group A is much better than group B".
Cue, people from group A starting to insult group B and the other way around. Happens mostly on Twitter but here as well.
Don't people realize they are a little bit manipulated?
This is not aimed at a specific fandom, (happens in my own fandom as well), but instead of laughing at OP/insulting OP/ignoring OP or best of all: blocking OP, they all do right what OP wants, rewarding OP and encouraging even more of this behavior.