Following pressure from the "People's" Bank of China, the major Chinese fiat/Bitcoin interfaces have brought an end to margin trading for domestic Chinese customers. Further fiat side interference with fiat/Bitcoin interfaces is expected to continue or accelerate over 2017.
FWIW sounds like OKCoin is still permitting 1:1 leverage. For now.
This is a good idea ; and entirely tmsr-approved. It best serves the interests of all those involved ; the Chinese side showed a capacity of acting reasonably that places them in stark contrast to the Obamite US.