According to China Daily News:
"The Shanghai government is considering the launch of online game service standards, according to which Chinese online game operators need to provide formal notification to players when they decide to close their usernames and remove their identification within the games.
The standards say that online game operators should strictly observe the regulations of relevant supervision departments and keep the records of the users to support the investigation of these departments when necessary.
In addition, if the users need to provide proof for their online game identifications to administrative organizations, judiciary or monitoring organizations, the operators should provide relevant identification and virtual property certifications to the extent permitted by technical conditions."
Developer Raph Koster has talked about a player bill of rights before, but this seems to be on a completely different level. However, like China's other "bills" and "bans" and "regulation" I doubt that this will change anything; but it's a start. (And no there are no gold farmer unions yet; although there are some "circles" and semi-"cartels")