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It may be annoying or inconvenient, but China is not the only country a requirement to register with the local authorities. The fact that it applies to all types of visas may throw some travelers off. Still, it is their responsibility to make sure (preferably before arrival) that the requirements for entry are met.

When you break the rules (intentionally or not), you're taking a risk. Some people get off unnoticed whereas others learn the hard way. Ask people familiar with the country and its laws before arrival and plan your trip properly.