Forward-porting ROS Hydro to Ubuntu Trusty LTS would seem to have more
utility. Unfortunately, to produce a Hydro-Trusty binary release would
require significant community effort to re-release all the packages.
OSRF only maintains a small fraction of the available released ROS
packages, so we are very sensitive to the existing time commitments of
the package maintainers and hesitate to ask more effort from them. Our
goal is for the generous efforts of the maintainers to provide the
most utility possible to the largest possible user community.

What prevents creating a Trusty-Hydro combination using the Raring sourcedebs? There's obviously some tooling effort to make the farm do that, but it's at least a single person's task and not something requiring the coordinated effort of 100+ maintainers.

M.