You cannot as a private person legally move more than about 100K USD out of mainland CN per year. You have to resort to criminal elements. Only they have the network. It's one of those things everyone does but lives in fear of being used against them by an enemy down the line.
I mean, 50K/year limit is pretty trivial to overcome. Those controls exist in a lot of countries, and anyone who has a decent amount of money is aware of ways of getting around it legally.
