Really sorry to hear that happened. But unfortunately I really have no way of knowing who those fraudulent users are until reports like yours appear. Please know that I do take action as soon as there is evidence of fraud. In this case I just now added @Asterix1 to the WTS seller warning list. I’ll leave his/her account open for 1 week from the date of this post so affected users can still try to make contact, and after that the account will be banned.
We tried that, but it unfortunately created a lot of situations where legitimate buyers were unable to interact with the sellers (since there is no way for the forum engine to distinguish between buyers and sellers). I had disabled the restriction, but I am now re-implementing a new restriction for the Want to Sell category so that only users with some amount of reputation are able to create new sales threads there. So we’ll see how that works in practice.
But, and this is an important but, the automated system is still no replacement for caution by users. I simply can’t vet sellers or broker personal transactions, so I urge all potential buyers and sellers to carefully read and apply these suggestions:
Again, I’m really sorry to hear that your transaction went south.