> It may be easy to differentiate with counterfeit shoes, but what happens with art pieces, books, collectors' items in general?

We don't do art or books, but we do some collectors' items

> What happens when a buyer disputes a counterfeit item with their "message" and the seller doesn't agree?

We ourselves can help if the customer paid via paypal/credit card — we've got the service mentioned in the article, which gets people's money back with 99.9% success rate, which we also guarantee it (so if it doesn't get your money back from the bank or from PayPal, we refund the $60 you paid us)

But yes — if you've been scammed by a malevolent seller, they might even believe the 'message' (they themselves know the item is fake anyway) and not care to do anyhting