The parent wasn't saying the Chinese aren't intelligent. He was saying if opening saying you hate the social credit system would cause you to lose credit on said system, you are incentivized to say nothing or feign support even if you don't. Because of this, there is now way to truly know how many people really support this. If it was a policy of one store, you would see the company succeed/fail. When it is the government, you lose the ability to vote with your feet.

> Because you think Chinese has no their own opinion, so they can't express themselves.

That was not what the poster you're replying to was saying. Quite the opposite, actually. The other poster was describing a political sophistication that would make an 80% approval rating for a social credit system a rather amusing irony.