I've only sold on here maybe 5 times and bought maybe just as many. Just stick with Paypal Goods and Services and you'll be covered when buying.
I think very few people actually use the sell list feature on the site. In my early years here I reached out to a bunch of users who listed stuff on their sell list and it was almost all A) no response, b) oh I use my sell list as a secondary wish list, sorry, or c) oh, I sold that years ago, completely forgot this site had a sell list, sorry.