Oddbean new post about login | logout The delete requests need to be signed and only work for the npub’s own events. I’m not quite sure of the way spammers would use them.
They create and delete events
I mean relays already need to have spam detection and intervention to decide which events to host. Rapid flow of create and delete messages is just another kind of spam. Also if someone wants their messages to disappear, they can just use the expiration timestamp when posting.