Well, are we allowed to say things like this? From a Chinese member in the mainland:
I'm not saying China has great freedom of speech, that is one area that we can work on in the future. But it is usually exaggerated to ridiculous levels, whereas the truth is that we can pretty much say whatever we want as long as we are not forming a large-scale political movement to topple the government.
Dude, that is a post on this website. Can you write an article criticising the government's policies in a newspaper? Can you write that communism is a bad idea and write in favour of capitalism? Can you argue in a mainstream magazine or TV channel that one party rule is autocratic and democracy should be instituted, so that the government can only rule with the consent of the people, and that governmnets need to be accountable to people etc? These are genuine questions, am not being rhetorical.
However, the chinese government does censor information heavily, even google is screened. If you google "tank man" from anywhere in China you would not get the results that the rest of the world will.