yeah. it's called the bitcoin blockchain.

Not necessarily. Someone could choose to just run their own relay and restrict access to it for example.

Sure, bound to happen. Tho at present, only popular people like nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m & Elon & political folks get their socials saved daily in Wayback. Regular folks “usually” don’t have to worry about that. But it does become relevant when all ...