So often on discord i feel a vibe of "its our place our rules" something I never sensed on irc. People kick you blind at the first polite disagreement. IRC doesn't breed this to this extent even on the worst Channels I ran into. And o irc, kicks happen if someone abuses others a lot. Not if you voice a different opinion (again politely)
Hence my belief that discord makes people built tiny castles way too stiff.
Are you on mostly smaller servers, or is it unrelated to server size?
You can definitely port the crushing silence/violent turmoil dichotomy of a large freenode room to Discord with enough users.