Today an Etsy seller reported that Paypal sided with her after she refused to refund Ullja's purchase.
Ullja Kuntze has been purchasing items from dozens, if not hundreds, of artisans on Etsy and other venues and has either canceled the sale or returned the item if it is shipped to her. Since Ullja's sole purpose in making the purchases is to obtain the seller's name and address from the Paypal invoice, she is a FRAUDULENT BUYER.
Ullja Kuntze has established a pattern of Paypal account abuse, of which Paypal is now aware. If you shipped something to her, you are under no obligation to issue her a refund whether she returns what she bought or not!