Good point. But isn't Craigslist's lack of vetting a good thing (1)? They're already giving out plenty of safety advice (2).
1. http://chrishateswriting.com/post/76431353368/the-anonymity-...
1. http://chrishateswriting.com/post/76431353368/the-anonymity-...
It depends on who's trying to use it. Some people simply prefer a more curated experience.