That's why it can be such a minefield on eBay. Good sellers are paying for scammers and rip off merchants sadly, I guess that goes for plenty of other walks of life.
I sold an Xbox 360 last month, and so far all has gone quietly. The seller received it at the beginning of last month.
I took LOTS of photos with my user name and date on a piece of paper and documented any numbers I could find, as well as taking photos of them. I also wrote I did all this in the listing. To my surprise no 'new' users or ones with low feedback scores (under 10/15) even bothered trying to bid for it.
As said, so far so good with it.