You can limit the number of transactions from a single buyer.
No, I get the point in theory, but I'm just saying that if a newb buys & the seller doesn't bother to leave feedback, that would leave him at zero feedback but with more than zero transactions. Even after almost 15 years buying there, I still buy stuff that I never get any feedback on. And if that was my first transaction, I'd be at least partially screwed under that kind of system.
Oh I see
At least they have non-paying bidder to work around the feedback system and it's basically mandatory to address unlike feedback. I've been on the wrong end of it though and it's to have someone open one on you in like 24 hrs.