Earlier quoted context omitted.
Yeah, I would have guessed a platform like Twitter would have anti-abuse systems with at least term filters.
At this point I'd advocate for a huge red button or a gong that someone can smash and it just halts the platform
So I can see why they wouldn't have one of those pre-built for setting the entire site to a read-only mode. It's not at all obvious whether the risks are larger with or without that capability built in. But a spam filter with configs you can push quickly seems like table stakes, and should be a system that gets excercised weekly if not daily.