I wrote:
The bottom line is that RFC 1464 was a syntax proposal design to
simplify information sharing. A registry was proposed to control name
collisions, but that never happened. It still seems to be a reasonable
approach and perhaps someone will put it back on the standards track
someday if appropriate.
Apologies for the ambiguity of my message. I meant to say that I thought the
syntax part (the core of RFC 1464) was a reasonable idea. I agree with
Phillip that the creation of a registry requires more thought.
Preventing name collisions through use of careful identifier selection would
be a good idea, registry or not (especially with no registry).
Rich