Oddbean new post about login | logout It's the same game theory as Bitcoin. Attacking it means paying the people that run the things... It's a futile effort. There are much easier things nation states can do to target specific relays. Again, it doesn't effect nostr if one relay goes down what's.
As you said that I was wondering whether the #GFC admins have figured out how to block #nostr #relays by protocol behavior as they've done with #signal. From what I've read it depends how simple the protocol is. #xmpp is hard to block even for China because it's so simple, but most others are a done deal already.
nostr is extremely simple. It's all just json being passed around websockets