But with these darknet markets everything's hidden and anonymous, so there used to be (?) something called an "exit scam" where they'd just disappear with whate

But with these darknet markets everything's hidden and anonymous, so there used to be (?) something called an "exit scam" where they'd just disappear with whatever funds were currently waiting for a decision. If things are set up so that the cryptocoins can only go to one of two places (seller's or buyer's wallet) that can't happen. That situation that it's avoiding is less of a concern with legitimate things where everyone knows who everyone is and law enforcement actually exists.