Not what I would have hoped for in an evolved Internet.
A lot has changed in the past 30 years.
The notion that 'anything is fair game' in the RFC series made a lot
more sense when the Internet was just an experimental network, and
when packet-switched newtorking was brand new. In such an environment
one could make the argument that all experiments in using the network
were more-or-less equally valid.
These days the value in the RFC series is not that it is a central
repository for everything having to do with Internet protocols
(as if such a repository were even feasible!) but that documents
in the series are likely to be relevant and of reasonable quality.
Indeed, were it not for the efforts of the RFC Editor and IESG to
maintain a high quality document series, folks wouldn't be nearly
so interested in having their documents published as RFCs.