I agree that kind 1 must not be considered mandatory.
Discussion
Then, let's remove it from NIP-01.
I really hope nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z's PR will be merged.
OK, time to get that thing moving again.
So you would have a reference to other NIPs in NIP-01? Like for implementation of kind 1?
This makes sense. A base protocol without a specific application. One had to look up another NIP to get something real working. So NIP-01 would lose one aspect of its beauty: it‘s self-contained and complete. At least for the „SMS-case“ in a world with „internet“.