Quoting Rob Myers <rob myers gtri gatech edu>:
if there are people willing to do 7.3 patches i don't see the need to
drop it. if people are willing to actively support any EOL'd RedHat
release they should be able to do that via Fedora Legacy.
We have a set policy on this. RHL versions for as long as there is
community support, and FC on a 1-2-3 and out policy.
the important point is that versions that do not have as much interest
should not slow down updates for versions that have more interest. in
This is correct. If they are slowing things down, then they basically
lack community interest and can be dropped, as we did with 7.2 and 8.