I may be rocking the boat here, but why would anyone think Craigslist would be able to police people that use the site? Or post the blame on the site for the nasties that are out there? As far as I can tell there are no terms safeguarding transactions, stated or implied.
It is an anonymous venue that must be utilized with eyes wide open. I have made many transactions selling and buying power tools, stereos, furniture, BBQ grills and other stuff.
Always cash transactions, a short term "hold for pickup" and never any type of warranty (examine before purchase). I have met my share of flakes. I learned pretty quickly to post my requirements and that usually throws off the scum that are trolling to take advantage of unwary people.
My 2 cents...
Whittier, CA, USA
Dona nobis pacem