A look at the types of posts the Chinese government seems to be censoring on the internet. It's not exactly what you think. Criticism against the government is not censored so much. What the government fears most is people organizing together for a common cause. https://www.crimsonhexagon.com/blog/using-social-media-data-to-understand-censorship-in-china/
One of the cons of censorship on criticism, media or whatever is that not only the people but the government is getting increasingly out of touch with reality.
Police in Guangdong go to internet cafes to do inspections checking the identification cards of the people using the computers. http://www.rfa.org/english/news/china/another-04222016112652.html According to the organization Chinese Human Rights Defenders Network, Chen is the latest in a string of five activists to face trial. The defendants have reported abuse of due legal process, including unreasonably prolonged pre-trial detention, and for several of them use of “endangering national security” charges.