For me as an AD, I am either looking at the tools.ietf.org HTML version or the datatracker page, or I am lamenting Google's algorithm that placed me somewhere else. But I don't know what "people in general" are "reasonably expecting" to do; perhaps the RFC Editor's plain-text repository remains canonical in usage as well as in archival status, even if it is not for me. (It's also unclear how useful http/rsync/etc access logs would be for trying to answer this question.)
I use rsync and find stuff using rfc-index.txt and rfc-index.xml. Those have the obsoletes and updates links but no URLs. Dunno how typical it is, but it's very convenient. The full archive including all the bulky postscript is about .5GB, not much these days.
Regards, John Levine, johnl@xxxxxxxxx, Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. https://jl.ly
