I am, and have always been solely a BTC/USD trader even though I am from a EUR country. Bitstamp is the perfect exchange for that even though its volumes are lacking nowadays. I have thought that after the hack of Bitfinex, which was, and still is the largest USD exchange according to its volumes, Bitstamp would significantly benefit from that. But it didn't happen.

For some reason people are slowly coming back to Bitfinex as this exchange is slowly picking up its volumes again. Not sure if it ever goes back to the levels of how it was before the hack, but I think it's quite worrying that people are returning to an exchange that messed up so badly.

I don't think there will be much demand for another Chinese exchange to list a BTC/USD trading pair. Just look at OKCoin for example, their BTC/CNY pair got a volume of over 1,400,000BTC in the last 24 hours, while their BTC/USD pair just sits at 3250BTC. And yes, I am well aware of the fact that their CNY volumes are higly inflated.