I think this is the only thing Nostr fixes. It has a lot of other issues, I feel which makes it difficult to scale. Like you can’t block anyone, just mute. It’s only the text that is distributed, media is still centralized, etc… You cant stop someone from following you. Metadata about you gets leaked to the network like who you are muting. It doesn’t work well if you use two different clients, like desktop and android.

That’s still a person against a bot. Spammers can spin up accounts automatically in Nostr with no verification.

Nostr has its own problems. Like you can’t easily defederate from spam servers in Nostr. Every person has to remove spammers, too, instead of an admin doing it.