Yeah, but you'll have to essentially dox yourself (shipping info), and hope that the user paying for your stuff isn't carding/chargebacking/doing other shady stuff, right?
Not sure about the shipping. There's a guaranteed 5% rate bought through Purse directly. The individual discounters do it through the wishlist so they don't see your address.
Carding is the most obvious turn off and I'm sure there is a mountain of it going on. They don't release the BTC until the item is received so there's some protection, but the buyer might be caught out later on.