Yea.... need ID huh.
We are sorry about that. But you know in China, we always chance some policy risk. There is no legal definition for Bitcoin in China, so we need your ID to prove that you are over 18 and can do your decisions yourself to avoid the risk.
We are liberal, and hate the regulation and the bullshit identity information. But if you cannot provide this kind of information, we cannot do our business here.
Sorry again, with BTC we have no choice. But we are working on some other choices like Aliexpress.com, with which you can directly pay with dollars and we cannot get your ID information.