Worthless rating.
Others could just as easily say the same thing about Moody's, S&P, and Fitch, which are American ratings agencies, and apparently that's exactly what's starting to happen now.
The problem is that we're borrowing massive amounts of money from China, not the other way around, and they're making it abundantly clear that they don't really care what our ratings agencies say, and that they're starting to have doubts about our ability to repay our debt.
This means we're going to have to start looking elsewhere to borrow our money, and if others start to decide that they agree with China, there will be no way for us to avoid paying higher interest rates on our debt.
Why should I trust Chinese liars who rate themselves high?