I'm worried about Discord.
RL imposes consequences if you act like a dick.
But Discord chat does not.
You can cuss out other person and none will ever care (hello moderators).
Which makes the place feel like cesspit.
Start inflict consequences of blatant insulting or filthy language and I'm sure situation becomes better.
I mean, this won't solve the problem people are not excellent to each other, but these these things at least would become limited to some degree.
Still cesspit with toxic vipers, but would smell nice at least.