I have not been paying much attention to the (old) Gnome versus KDE debate until yesterday (I just assumed that Linus is nit-picking and brushed it off).
But after installing OpenSUSE 10.3 I realized that the API for the gtksourceview component has changed. In the process, a part that is important to me (source markers) was dropped. It is not a show-stopper or enough reason for me to part with Gnome, because for the time being I have got some options, and the GtkSourceView team will reintroduce the dropped features by version 2.22.
But I understand now how people get upset over dropped features and interface changes.
As always, Linus was right.