That's fine. You might want to study the evolution of NNTP. There, lack of the official IETF stamp of approval did not inhibit NNTP from evolving. If you try to implement NNTP based only on IETF's standards-track documentation, you won't get very far.
Are you saying that NNTP is a good example of protocol design? Or a good example of creating a widely supported feature set?
I don't think either really holds. NNTP was in any case established and the RFC published before the date of the first IETF meeting and long before there was a defined IETF process.
NNTP chews up about four orders of bandwidth more bandwidth than it needs to.
The protcol set is poorly standardized and the application
has failed to meet the problems of spam, trolls and other social issues.
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