It sounds like they haven't heard of the outbox model Also this isn't true "there is no federation among relays" The section seems a bit dated
80% of nostr misunderstanding (particularly wrt scaling) comes from not understanding how something like outbox would work. which is fucking retarded. the “public square” use case of nostr basically implies (something like) outbox; it’s like saying nostr can’t work because people can’t do math that quickly since the spec doesn’t mention computers.