It’s being discussed informally here in nostr on kind:1s, not structured or formalized or in some secret group or relay; it’s like “we’ve been talking about covenants on bitcoin for years”, not that there was some explicit invite-only meeting; just a popular topic that keeps coming up over the last years.
Discussion
We haven't been here for years and we haven't been part of those discussions. If you want to change the NIP-01 spec, let's go ahead and change it. Someone arriving later shouldn't have to guess where something is headed. You're expecting us to fork off a spec that doesn't yet exist.
Liminal was assuming that NIP-01 contained the expected standard and tried to fit his stuff to that, which was very reasonable.
We can submit a PR for NIP-01, as well.