Cannot believe Facebook Marketplace was included as it's a hotbed for scams in SA. My daughter was scammed into buying a fake Samsung phone (yes it even made called when she tested it) and there was zero interest from Facebook or Samsung in sorting it out (as Samsung says it happens all the time on Facebook). I placed an ad on Facebook warning others about the scams and then Facebook banned my advert. I did a post at
http://gadgeteer.co.za/details-fake-samsung-phones-being-sold-facebook-marketplace-cape-town on what to watch out for. It was reported to SAPS and we offered to lure the guy out to be caught (we had a photo of him too) but SAPS was not interested...
I'd also have included Bid or Buy as they also rate sellers and act as the intermediary to ensure funds clear properly through a 3rd party. My daughter was similarly scammed through Facebook Marketplace with an "instant EFT" payment that just never went through, and she lost her phone this way.
Maybe an article highlighting the various scams and how to avoid them could be a good thing - you have no idea how many people have contacted me via that Facebook Marketplace ad, asking if it is available to buy still. They just did not even read that it was an ad WARNING about scams.