Duh....
No one is going to argue that Tianamen massacre is good -- but you haven't produced one thread of what you claim to be is true, other than the normal party lines.
I have heard dissents and complaints about the government in private all the time in China. Have you even visited the place recently? For sure, mass protests and organization is forbidden, but there are gradual changes in terms of news reports. The HK news is real, and if you actually bother to go there and watch it on TV, you can see for yourself.
BTW -- the PRC obviously haven't censored freerepublic.com, cuz i can get to it from China :)