zhoutong is a known scammer. Do not do business with him. He needs to be banned on HN as well.
Edit: I'll quote what I said in reply to someone else:
Zhoutong is a scammer, he operated an illegal bucket shop known as Bitcoinica and tried to hide the true nature of the operation just so he could close it down at its peak and steal several thousand BTC from customers trading futures on his platform,
He then tried to cover up the theft by selling it to the people who run Intersango and tried to blame them for the missing Bitcoins. He also tried to blame "hackers" for it.
In addition, users are suing him for close to half a million dollars for his lies. His defense is hes claiming he was 17 at the time (early 2012).
http://arstechnica.com/tech-policy/2012/08/bitcoinica-users-...