> when they're the only ones in a position to have vetted the real seller I've yet to see any evidence that marketplaces are actually interested in vetting sel

> when they're the only ones in a position to have vetted the real seller I've yet to see any evidence that marketplaces are actually interested in vetting sellers ... or buyers, for that matter. Marketplaces are basically all about taking their % of the sale, yet getting to shrug and walk away if the transaction goes south.