Comment 3 for bug 1717946

To add to the things above:

Xterm and UXterm have dated icons that stick out in gnome-shell like a sore thumb. Much more than in the Unity dash.

Xdiagnose shows up in Ubuntu Software. A newbie that tries to remove it (“I don't get for why it is useful, it looks broken“) will remove the entire ubuntu-desktop metapackage which is not desireful.