BIP340 usage in nostr *might* have interesting implications.

One, it means multisig is an automatic "first class citizen". You could have a group account where 5 people have to agree before a post goes up, and this requires *zero* protocol or client interface changes (just some sidecar software to do the co-signing).

(It also could mean use of signature adaptors to do weird things ... you can't get the 'atomic swap of money for message' quite, e.g. the idea of 'you can only post a reply by sending me 1000 sats', because there isn't enforcement of atomicity without multisig signing as per above. Maybe there's wiggle room there, not sure).