The changes are not "random", just because you don't know about the thoughts and testing that went into them. Mac made a huge all-breaking change with Mac OS X

The changes are not "random", just because you don't know about the thoughts and testing that went into them. Mac made a huge all-breaking change with Mac OS X. That only occurs every few years, but as you say, Gnome 2 is ten years old. Then Lion introduced all kinds of workflow-breaking changes, like the automatic spelling correction, the "overview mode" or whatever it's called, the reversed scrolling. And you have to suck it up that much more on Mac OS, because there's just no way to install a different version of the interface.