1. As long as this system does not use for rules the Western religious/moralistic norms and Western feminist norms I don't see what the problem here is.
2. There are thousands of CCTV cameras in Britain and I would say that the Britishers should be more worried about these cameras than the Chinese be worried about this credit system.
3. I have seen websites which have a reputation system for its members.
4. In a future human society where conventional money has been abolished and all necessary things are free ( like medical system, public transport etc ), certain things that are in short supply ( like a cake in cake shop ), a monthly or weekly or daily credit system can ensure obtaining such things.
@Indus Pakistan @prashantazazel