Some of the points seemingly have nothing to do with studying abroad, but the nature of the university he attended, for example,
> First, you have no time. You read a lot but there’s no time to think.
This is has nothing to do with being a foreigner, or being in any specific country. It's a university culture, and every university has its own pace of teaching, in China or US.
And then,
> Of course, it makes no difference if you don’t go > to bookstores in the US, but if you bring this habit > back with you, it means that you don’t go to bookstores > in China
Seriously? How hard it is to consciously decide to go to a book store when you are in need of a book? This also seems to imply that China has no good libraries, which is untrue. I'm from a small city in China, and I borrowed so many books from the city library. That was how I got into programming as well, borrowing a book about Turbo Pascal.
Personally, I think the biggest difficulty for a Chinese in studying abroad in the US, is the difficulty of being accepted into the circle. You could make friends and acquaintances with Americans, but you're never part of "them". I constantly feel like I'm on the wrong side of a aquarium glass pane, being observed and judged.
There are two real choices: 1) pretend to be a white person and be extremely amiable, or 2) fallback to the smaller circle of Chinese people in US.