Spam fighting on here seems like it'll come down to relays being able to spot spam and combat bots.

Eventually relays with the least amount of protection will doom themselves due to amount of resources they're giving up.

How do we combat censorship though? If a user you follow is removed from relays you follow youll need to somehow find that users new relays to resume following them.

Alternatively if each note, also stored what relays it was sent to, then a client could work backwords at using those relays to keep track of that user 🤔