Does this mean that things like instant ISOs, hardware/software
inventory, etc. Will all be unavailable for Fedora systems?
See the message. A lot of it - like instant iso has to be honest been
"communitized". Bittorrent's community economics and co-operative stuff
have distinct advantages already.
To put it more bluntly, if I only plan to run Fedora (and not any
version of RHEL), is there any reason at all for me to pony up my $60 to
renew my RHN subscription?
Up to you. Although the price will be lower to reflect the shorter time
(
https://rhn.redhat.com/help/rhlmigrationfaq/)