China banned any financial institution(banks and so on) to deal with companies who are dealing with Bitcoin.
Yet you are able to deposit funds from a bank account directly to BTCC now (has been the case since at least mid October and you can use any of several of the major banks).
There has been no official announcement from the PBOC about this so I guess they are watching and waiting to decide whether or not to make such an announcement (makes it very easy for them to stop it again any time they wish to for now).
In regards to the tx volume any exchange can fake it regardless of fees (if they are paying the fees to themselves) so actually I think it is more honest to have no fees and simply let people analyse the trades (which is what BTCC does).