I could see P2P transmission as being super neat for near-instant messaging. Not sure if it is a good idea for broadcasting notes to all followers, but there are definitively use cases where I would love that.

Please do consider documenting it - even if not in the nips repo - for easier referencing when developing something based on this! ^^

IMO Nostr lives and dies from it's documentation. It is why there are so few Matrix clients, because the Matrix docs are a PITA...