Linus Torvalds has an opinion on many things. For example, he doesn’t like the gnome window manager. Which is fine with me, but the whole discussion highlights one of the sore points in the open source world.
Basically, Linus’ problem is that the Gnome interface designers intentionally removed certain functions for the sake of usability. Linus didn’t like that, especially the fact that he wasn’t able to configure his mouse buttons: