That’s one of the big reasons I started writing my own relay: 
https://github.com/nfnitloop/yastr?tab=readme-ov-file#yastr

If you make a distributed system that’s open to everyone all the time, you’ll get inundated with spam/trolling/bots/abuse. IMO a better solution is to let it be open to read, but restricted to write. People can quote and reply to content but it doesn’t mean I have to see it if I don’t want to.