http://macperformanceguide.com/MountainLion-SaveAs-data-destruction.html
I don't even... I'm at a loss of words. What advantages outweigh such blatant disregard for actual computing? Can someone explain Apple to me? Not saying Microsoft is heading in a better direction, but still -- two wrongs don't make a right, do they.
If you haven't, try OpenSUSE + KDE at least once. Maybe it's more work, maybe has less shiny stuff, but at least they don't troll their users :P