Relays can already blacklist peoeple Wait for them to start sharing these lists with instances like on Mastodon and then boom
This might be why #keet is a good idea. I'm glad we have that in our back pocket.
They called it #FediBlock and had a Git repo where you can add a server that was offensive to you
Federated does not equal decentralized. Nostr is not advertised as being federated while mastodon is. Nostr is mostly decentralized. Of course when I say decentralized, do understand that the term is a gradient, not a dichotomy like decentralized vs centralized.