It all began quite benignly, with http://xkcd.com/388/

then it escalated into http://blag.xkcd.com/2008/02/25/fruit-opinions/#comments at unbelievable speed.

Says he: "Holy crap. This strip’s been up for 800 seconds and it’s already the most controversial thing I’ve ever written, beating out comics about cunnilingus, the Obama endorsement, and my making 4chan tiny on the map of the internet. It turns out everyone and their mother has a fruit opinion, and every one of those opinions is now in my inbox."