It is not completly true, KDE makes big mistakes (and the distros don't check) like for example this last error introduced in 4.6.2. http://bugs.kde.org/show_bug.cgi?id=270228 It was not possible to shutdown the computer for many, many people using Linux, but not (I think) for *BSD users.
Yes, because of some idiot who thought he will help bsd to gain more attention.
Yes: Stop minimizing windows.
When I tried GS it was soon very clear to me that minimizing windows is not something one is expected to do in GS's workflow. Instead new windows should be launched in new workspaces. Workspace management is IMO still lacking refinement but it's just a dot 0 release.
I just can't adapt to such behavior. Maybe if Gnome 3 will be my first DE in entire life this will be different. Btw. sometimes you just have to minimize quickly.