@futurebird
Partly it's by construction: we left other platforms to find something less toxic.
I'd like to hope it's also by design: having reply and boost but not quote.
If the only things you can do with a thread are contribute to it or make it more visible, then there's a higher cost to being snarky than when you can quote it behind the backs of the original posters to a different audience for the deliberate purpose of shaming or contradiction.