I must say that I disagree with his opinion on webcomics. I'll admit that there are many, many, bad webcomics out there. Such as the entirety of DrunkDuck.com's collection. However, I am a fan of a few webcomics, particularly CTRL ALT DEL, which Yahtzee seems to rag on a fair bit. I'm also a fan of MegaTokyo.
For the hundreds of badly made, no effort involved, webcomics "MegaMan and Kirby Neo X 2099" and such, there are one or two good webcomics which are actually good. I'd highly recommend Purgatory Tower as a prime example.
It seems that lately, all Yahtzee seems to do is try to annoy as many people as possible, to get his popularity up - after all, controversy sells. This has been true for Metal Gear Solid 4, The World Ends With You, and Super Smash Brothers Brawl. I do feel that this is going a step too far though as he's throwing every webcomic, ever, into the same pot and trying to claim they're all the same.