Hello, i have a question, what do you plan to prevent and/or help the buyer in such cases  :

- Hack of the seller account
- A damaged product
- A product not delivered
- vilifying (against the seller in that case) or fraud

Because these cases often happen on eBay ( especially with Paypal, it's known the buyer scam who buy something , receives the product and then take back his money with the support of Paypal)