[auganov]

How niche is it? Can they pay with credit cards (which most people in china and can't)? You'll need a local entity if you want to do payments through Alipay etc. Which can be done with a WFOE if you have aprox. 100k in registered capital.

If you're confident that it'll be successful AND your strategy is fairly stable and you just want you product in China then go for it. But if you ever want to go mainstream there, want to take Chinese investment or anything of that sort that requires you to abide by their regulations just forget about it.

As far as the technical side goes, yea, just proxy their connections if you cannot cache it locally. And you want to use shadowsocks or something else that doesn't get hit by the GFW rate limiting super fast. But you'll still want to have 5 or so exit nodes that you can rotate (or bind togather) in case the throughput goes radically down. And yes if you're a popular product it probably can get you banned in China.