Ultimately, you get the worst you're willing to put up with. When the Windows dev team bends over backwards to keep buggy applications working, they signal that those bugs are acceptable and turn them into the accepted way to develop Windows application software.
When Torvalds bumps the major version number with little warning, he signals that anything which depends on it always being '2.x.x' or, worse, '2.6.x', is not acceptable and will not be tolerated.
I've lived in both worlds. I prefer Linux. I'm not alone.