I agree of course that uniqueness should be a MUST.
But while I don't feel strongly about this, I'm actually a little
reluctant to put permanent URIs to RFC. First of all, from the point of
the RFC in question the registry use is largely a publication-time
issue. If I implement RFC XXX all the code points that I need are
already verbatim in the RFC. Secondly, for some reason I feel
uncomfortable with placing a permanent pointer to the RFC, while I agree
that at times it would be helpful. Call me old-fashioned, but I fear
that something might change in, say, the next 20+ years. By the way,
current use at least for me does not go through a search engine but
rather through indirection. I know the IANA registries page, and I
search the given registry name from that. YMMV.
(That being said, I wonder if some tool magic would display these
references as pointers, just as already happens for normal references.)
Jari
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