—Also, you can google the name of the seller...—
Excellent idea! BTW, I’ve noticed on this local site that there are a LOT of “really good deals” and almost every one has at least one comment below it that says “Scam”. They all have one thing in common: Either no phone number or the number is a fax machine somewhere.
In this case, the seller actually went to the trouble of becoming a member of the site (the only way you can create an ad), which added legitimacy to it, for me, anyway...
A telephone number and an email get your ‘legitimacy’ on craigslist. Don’t use CLASS membership as a source of trustworthiness.