http://www.theglobeandmail.com/report-on-business/paypal-canada-to-offer-free-returns-to-ease-reluct...
What neither Paypal nor the reporter seems to have noticed is that the companies offering free return shipping to unsatisfied customers are retailers.
Paypal is a payment venue, that neither buys nor sells hard goods.
It probably is a Best Practice for a retailer to offer free return shipping (although the articled did note that returns for 'fashion' purchases are double those for other categories), but since PP is only selling the virtual equivalent of money orders, you really wonder what they think they are doing?