I think it would almost have to be someone like Stripe or Paypal, such that they have a broad enough view into the buyer. They would get data via chargebacks versus just seller initiated data.
Personally, I think credit card companies should send back something like "percentage of purchases with a chargeback" and let us decide how risky we want to be.
You could also function as a broad returns resale company, front a portion of the money for the return fix/dump products in house and resell them at a discounted price. Then adjust the percentage you refund the seller based on what type of item it is and how much of there stuff comes back unsalvagable. Target resale at the developing world/people on shoestring budgets/startups.
Personally, I think credit card companies should send back something like "percentage of purchases with a chargeback" and let us decide how risky we want to be.