He cut and run. I don't see what's so special about this. If I read this shredded English properly, he had successful transactions, then cut and run. Pretty par for the course as far as things go.
No ban yet ? 
How is it possible ?
Bear ? John ? This guy needs to shut up until justice knocks to his door.
I've already moved across the country. And I don't "need to shut up". That sounds borderline facist.
On topic - My point was simply that there is a difference between a "selective scammer" (someone that hits you because he can with no real consequences) and a "runner".
A selective scammer will hit 1/10, 1/20, or that sweet bulk amount out of 50 legitimate transactions. The world could worship a selective scammer for their legit reputation and honesty, while two or three people cry foul. They are extremely hard to detect, even harder to catch, and impossible to stop, as the human attitude towards business transactions is usually "Well -I- didn't have a problem...". If you've dealt with a person for $50 amounts, and the rest of the people vouching for him have dealt in $50 amounts, do not be the first to deal in $200 amounts. That's the best advice I can give.
A runner simply waits until the "pot" is big enough (enough trust has been built, transactions performed) and then hits as many people as he/she can in one swoop. They are difficult to detect, easy to catch, and difficult to stop.
A tell-tale sign of runner behavior might be a "great deal", or someone who is only offering large sums of something. Or if they suddenly stop accepting escrow. But that cold and sick feeling in your stomach when the PMs go quiet means you've just been hit.
A selective scammer can be exposed with this kind of thread. A runner is ready to go down in flames (and with your money) and does not care about these kinds of threads. That's what I'm saying.
Never. Ever. Ever. Ever. Ever deal outside of escrow. Just don't do it. Wait your 1-3 days for John K (or less than that) and escrow properly.