someone is shorting from 7 again! 
I'm not shorting. My position is long with 1500 bitcoins leverage 10:1. I have another 3000 bitcoins to buy if it drops down more. I'll just keep adding my long position until I cash out with a fat profit.
That's called a martingale. Watch out, you'll get hurt... that is, if it goes down at all. And it will, but not to $2-3. Probably not even to $5.
I'm not worry too much. =) I'm not going to get a margin call and don't plan on it. I'll just add more btc or usd to the account.