I would never do Craigslist, way too many crazies. With the FB Market Place you can do more research on the seller. Not to say that one shouldn’t be careful but I’ve seen some incredible bargains. I’ve seen nearly new washer and dryers, stoves, grills, etc. for sale really cheap because of people getting married and having two or remodeling or having to move and not needing those items. I’ve also seen some crazy stuff listed like used makeup. YUK!
The biggest problem, not that it is a problem for the seller, is that it is often first to show up with the cash and the truck, gets it. That can be a problem if you work or don’t have immediate use of a pickup truck or van and someone to help you move it.
I don’t have to worry about the crazies anywhere since I don’t usually do second hand anything. Trying to find a match for this headboard was a one off.