but what happened to the basic principles of Econ101?...Know your market...go download tor and do some market research people.
I took action on your advice and went for a visit. Pretty interesting I gotta say... some of the transactions are obviously quite large too after browsing some of the listings and recent feedback.
The one question I had to myself was: whats stopping these sellers from signing up as buyers and performing a 'fake buy' to leave themselves more positive feedback? I'm no expert on this, but wont Tor itself will prevent basic security measures other sites may use like logging account IP's etc...
There is a forum community at SR who work together to try to root out the scamers through reviews and interactions with the actual vendors who themselves visit the forums to cultivate good relations. Also it costs money to buy a vendor account on SR which further deters scamers. Then there is the feedback system where buyers rate and leave comments on their transaction.
As far as the 'fake buy' feedback you are asking about, you can tell pretty easily as you can see along with the feedback what item the buyer purchased. Most of the time what happens is the vendor creates low cost listings or cheap digital listings (downloadable pron for example) where the vendor is able to build up feedback without having to pay large amounts of commission to SR. If a vendor wanted to make a fake account with legitimate looking transactions they would have to make a large investment as SR takes a cut from everything.