"a genuine need to stop the spread of irresponsible rumours"

Reuters got a glimpse of the Sina Weibo censorship office in Tianjin, half an hour from Beijing by high-speed train, one recent weekend morning.

A dozen employees, all men, could be seen through locked glass doors from a publicly accessible corridor, sitting in cramped cubicles separated by yellow dividers, staring at large monitors.

They more closely resembled Little Brothers than the Orwellian image of an omniscient and fearsome Big Brother.

"Our job prevents Weibo from being shut down and that gives people a big platform to speak from. It's not an ideally free one, but it still lets people vent," said a second former censor.

The former censors said the office was staffed 24 hours a day by about 150 male college graduates in total. They said women shunned the work because of the night shifts and constant exposure to offensive material.

The Sina Weibo censors are a small part of the tens of thousands of censors employed in China to control content in traditional media and on the Internet.

Most Sina Weibo censors are in their 20s and earn about 3,000 yuan ($490) a month, the former censors said, roughly the same as jobs posted in Tianjin for carpenters or staff in real estate firms. Many took the job after graduating from local universities.

"People leave because it's a stressful dead-end job for most of us," said a third former censor.

Read More | "At Sina Weibo's censorship hub, China's Little Brothers cleanse online chatter" | Li Hui and Megha Rajagopalan | Reuters