I wouldn't "out him" myself, there are so many like that he's just another in a long list so I don't see the point really.
...and it wasn't me, honest, I wasn't even there, didn't do it, no sir.
I advertised a motorcycle for sale on Craigslist, guy call's, emails, got all the details, never heard from again. Then a couple of days later I see HIS AD for the same model bike I selling. Now that got my goat, I gave up all my info to this guy so he could one up me!!!! Stinkers, the world is full of them.