Will be blacklisted:

Five or more different individuals remit foreign exchange to the same person or institution abroad after purchasing foreign exchange on the same day, every other day or for several consecutive days;

Individuals withdraw foreign currency cash close to the equivalent of 1 10,000 USD from the same foreign exchange savings account for more than 5 times within 7 days;

The same person transfers the deposits in his foreign exchange savings account to more than five immediate family members, etc.

So if it is too frequent, it will be blacklisted by SAFE.