Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Any change to something which has been done the same way for years is going to cause an uproar, before Gnome 3 as far back as IT history goes major changes to GUI's have caused friction. The earliest i remember is the change from Windows 3.1 to Windows 95 which was a huge change in an OS, the Windows 7 used today is not really that different in concept from Windows 95. When OSX was released same thing and most recently the KDE 3.5 to 4.0 change is still causing friction years after the update.