Why, Mac vs. PC, of course:

Q. A number of people posted really nasty comments about your review, including a number that include swearing at you, racial slurs, calling you stupid, a loser, and much worse. This stuff usually doesn't happen on this blog - why now?
A. It happens anytime you write something negative about Apple, no matter how minor.

Q. I also noticed that a number of PC users posted angry anti-Apple comments. Why is that?
A. It happens anytime you write something positive about Apple, no matter how minor.

Heh - about the size of it. A few weeks back, we took my wife's old PC to a repair shop - the guy tried to upsell us on a new PC, and when I told him we were in the process of replacing our PCs with Macs, he got mad :)