It's a bit confusing. My resident card says I am of Xiamen City, but if I want to get HUKOU in Xiame, hell, it is going to be difficult. Saying "Residency" is easily confused with resident card. But I think you are right, the nuance is trivial to others, and I should probably just call it 'residence'.
Yup - also for foreigners living in China it is *possible* to get a residency card (as opposed to a "temporary residence permit" which you otherwise need to have to legally stay in China) although that is not easy at all (I have only met 1 foreigner who has one of those which he only got after several attempts and who has lived in China over 25 years and ran a multi-million dollar business here employing 30+ Chinese workers).
I also agree with most of what zhangweiwu is saying - so it will be interesting to see exactly *what happens in mid-April*.
I would also not be surprised if things just keep going on as they did after Chinese New Year (and that this just keeps coming up every quarter as a way of "keeping people from feeling comfortable" using Bitcoin exchanges here).
Indeed the *biggest* concern the Chinese government really has with Bitcoin (and others) is capital leaving the country.