[zozbot234]

What you're saying is simply that GNOME developers don't want to pick up development and maintenance burden that isn't going to directly benefit their project. If you think there's opportunities to share projects or libraries across DE's, the proper venue for that would be freedesktop.org not really GNOME itself. Then the maintenance load can be shared as well.

[sprash]

This has been tried. All you will get is rejected pull requests. What makes it even worse is that GNOME has usurped many projects that were original not part of GNOME but that the community relies on (one example is the "GIMP Tool Kit"). This led to the death of many long tail niche projects which are the actual strength of Linux/FOSS.