Yeah, I tried selling so many times on BTCChina without success that it locked my account. No trading / withdrawal / anything for 8 hours until support wakes up.
Woo.
Hm. Interesting.
I have contacted BTC China developer and he said there is no requests count limits:
Hello July,
Thank you for pointing out the error. The new getMarketDepth2 method allows you to request a arbitrary number of bid and ask orders from the complete order book. Let's say you only need to get the 15 highest buyers and 15 lowest sellers then it's possible to get that from getMarketDepth2.
Currently there is no request limitation for API requests, however that could be changed in future.
Regards,
Tony Leng
BTC China
https://www.btcchina.comI'll contact him again and I'll make optimal requests interval.