One of the thing I really appreciate about SSB is that block events are publicaly posted by all clients (at least all the ones I've tested). It makes blocking a communal act: see someone you trust block an account, give the account a look, and perhaps block it as well.

More important to block there since each account takes up storage on your device, but would be nice if clients did that here for blocks and mutes. The trolls can go play with the people that can stand them, and micro communities can form free from trolls and spammers.

I haven't checked, but does #nos do this nostr:npub1wmr34t36fy03m8hvgl96zl3znndyzyaqhwmwdtshwmtkg03fetaqhjg240?