Even if he only changed one thing (the PKI), it would be a hardfork of nostr. There are some base level items that cannot be improved without a hardfork.
So if you need to hardfork for that, might as well change some other things (like the assumption that everyone will have their own personal relay I suppose).
Yeah, I don't know enough about the PKI to comment too much. But since it's still key-based, you could build that whole system on (or maybe around) nostr.
Okay but this is not what "hard fork" means. This is not a blockchain and we didnt use any Nostr code. We were never Nostr and there were no forks or defections.
Hard fork in the sense of nostr would just be a change in the identity system which would create two different networks. But yes good call to clarify that