Good for you sniffing it out! I nearly got scammed too via auction site and PayPal...as a seller.
I tried to sell 3 laptops on eBay auction site and had basically zero experience as a seller on auction sites. Immediately got 12 offers over the asking price...I checked the profiles and most had zero history on the site. Got suspicious...
The scam goes like this: they make an offer, you accept, they pay with PayPal. Then they ask you to ship it somewhere else other than the PayPal verified address (or as a variant are from a neighboring country). They claim they never received the item and get refund, and you're sunk, out the money and out of the item.
Often they'll be from a different country e.g. Canada instead of U.S. in my case, and the shipment tracking goes blank at the border.
My understanding was that PayPal would have backed me up had I sent to a PayPal verified address...but glad I didn't have to test it.
Eventually a legit buyer came through and it was OK for me, but I barely 'spit the hook' to use a fishing term. So many scams out there! 😬