I've met and had to aid people just as stupid and ignorant about IT and guess what they used Macs. Stupidity is platform agnostic and in my experience those who use Macs tend to be less IT aware on the whole. Why? Macs are advertised as being easier to use, so are more likely to be used by those who are not techy.
Smug and superior atttudes like those shown in this thread are exactly why I don't advertise I use a Mac, as people will often assume you're up yourself because of this sort of asinine nonsense.