Why do we often pick on Windows?

Other operating systems are a bit strange too. Just take Apple's baby - Mac OS X: Today I read a post on www.lifeclever.com about a shortcut to create ZIP files on your Mac. The fourth step in the tutorial made me think:

For the shortcut to take effect, log out or restart your computer.

Restarting my computer because I added a shortcut? Come on, we all know all those nice self-made screenshots where Windows tells you to restart because your mouse has moved. Ironically, this one seems not to be a joke at all, but simply the truth.