"The head of one of the world's largest bitcoin exchanges told CNBC that the ban on the virtual currency by Chinese e-commerce giant Alibaba won't affect his business."
The "voucher" mechanism adopted by BTC-China (which of late had only 1/10 the volume of Huobi, by the way) apparently uses e-commerce sites as money transfer channels. Will China's central bank be fooled by that trick? Anyway its volume seems to have fallen quite a bit in the last 24 hours.
I doubt anyone is able to take total control of Taobao(the C2C platform using Alipay), since practically anyone is able to open a shop there and now there are millions.
VPN sales(for GFW circumvention purposes) have been banned there for years, but we have always been able to get our hands on one, all you do is selling them under a different name then it's hard to find out.