I'm certainly willing to concede that Craigslist has work to do in order to beat spammers and improve the usefulness of their product. But he has one core competitive advantage over his competition that, to my mind, trumps. That core advantage? I trust Craig Newmark, and I do not trust his competitors. I like his style. And as far as Kijiji goes, I wouldn't buy a ham sandwich from Meg Whitman.