Not just China, it applies to every regulator that wants to know who's trading.
KYC and this project we do not have anonymity anymore, this is the price of adoption I guess, regulation and being tracked.
China is not killing anything. From day one, we know that bitcoin is not fully anonymous, it's psydoanonymous. users can be traced by their unique addresses. It's not the case with all cryptocurrencies, some of them can be used in full anonymity until using an exchange who can reveal your info.
Does the data here provide "who's trading?" I cannot find it. They're just providing numbers. Do these figures have anything to do with anonymity?
I can only see exchange inflows and outflows, reserves, deposit and withdrawal transaction counts, and so on and so forth.