There was an interesting thread a while back on the Aus/NZ forum about bullying. The comcensus being that if you are putting yourself out there then you're going to take the feedback both good and bad.
If he is off to China then I expect a video in the not too distant future about why he quit. I do question why he's set up a channel. In the real world people change jobs and company quite regularly and I don't think your average viewer would understand the significance of quitting and going to another employer.
I hope his his Chinese experience goes well! Good luck to the guy.