Hong Daode, a law professor at China University of Political Science and Law, welcomed the move and suggested that public security departments should create teams to monitor the online promotion of prostitution.
To help residents report effectively, the center has opened accounts on We Chat, the most popular instant messaging tool in China, and on micro-blogging platforms, "because most pornographic information spreads via mobile networks", the administration said.
He also lost his ideals and faith, and seriously violated the Party's code of conduct, it added.
Zhang's case has been transferred to judicial authorities for further investigation.
Zhang Jinbiao has been removed from his post as Party chief of Hotan prefecture in the Xinjiang Uygur autonomous region and expelled from the Party over graft issues, the Xinjiang Commission for Discipline Inspection said on Sunday.
The watchdog said Zhang, 53, was found to have seriously violated political discipline and rules and did not perform his duty to combat terrorism and maintain stability, which had serious consequences.
For example, some micro-bloggers and We Chat users illegally posted information about prostitution in the name of popular models or celebrities, including actors, while some made use of instant messaging tools to upload sexually oriented videos, according to a statement from the administration.
Some posts can be erased after a smartphone user reads them, making material difficult for law enforcement departments to trace, the authority said, adding that addressing this is a priority.
But thanks to the media's wordplay, young empty-nesters include those from 20 to 39 years old who work far from their hometown and eat and sleep on their own.
In May, the number of all reports received from mobile platforms reached 900,000, about 57 percent of the total, the authority said.
It has built a smartphone app to deal with the load from mobile devices.
Some actually have pretty good social lives and enjoy hanging out with friends.
They do not have to be "single dogs", either－a Chinese word created to mock those who are single beyond a certain age. Neither can they be simply categorized as kenlaozu, or boomerang children, media jargon referring to those who are economically dependent on their parents.