So , just don't leave your home addres when you

get in the Chinese airport. I know there are a lot of people who only leave a hotel address on the airport record.of course, if someday the airport and local police department have some network, you will be found.
Right now, it is very important to keep a Chinese ID because if you have a house but have no Chinese ID, your
house will become non- Chinese people's property . you will get a lot of trouble if you want to pay tax or sell you house.