There are NIPs (for Nostr), PEPs (for Python)... But they all have the problem that parent is complaining about. The possibilities/proposal part of the names remain even after they have been accepted or rejected.
It kind of makes sense! First you make a proposal, and then it's a accepted proposal or rejected one. Just because it changed state doesn't mean it's no longer a "proposal".
Compared to a RFC. If it's accepted/rejected, it's still a RFC, which isn't really true anymore, comments are no longer requested.
Compared to a RFC. If it's accepted/rejected, it's still a RFC, which isn't really true anymore, comments are no longer requested.