This is part of the point of NUDs. They don't need to be on github, and they don't need numbers. The collision on number is part of the reason NUDs were proposed. Of course, they were proposed on github, because that's where people have historically requested feedback for additions to the protocol. If you don't want to participate in that conversation you don't have to, but don't complain that people aren't doing exactly what you're asking for if you're choosing not to read about it.