Imagine that we start BISQ from scratch and there are no reputable traders right now. How do we evolve? Does everyone start with very small trades that they can afford to lose? And then build a reputation if they are lucky and get small trades at first with honest traders who will also leave a real feedback? I'm simply curious about that.
The same way they did after Bitcoin was built. Initially, only real Bitcoin users are interested in a trade and there are no scammers (since nobody wants to steal what is considered a "worthless currency"), so two these people would find each other, link up and perform a trade.
By the time the scammers started rolling in, there was already a bunch of people who could be considered trusted sellers based on their trading history.