can you sell porn to china
 

While porn may be baned in China, they still can access it.

so can you make money from China?

Sure you can. Never forget the quantity of customers that are accessing via a proxy or VPN.

The key is finding the best way to bill every real customer you can. Many sites are concerned about the bandwidth used by non customers, which is a good concern to have.

i guess it is possible... but not a target market...

I think there are some countries where they block access

I have some Chinese rebilling members.
Chines people like milk :)