For months, Chinese authorities have been cracking down on the country’s powerful internet sector, targeting an array of companies over issues from anti-trust to data security. Now, online celebrity fan clubs are the latest to feel the heat. The regime’s top internet regulator, in a bid to rein in what it described as China’s “chaotic” celebrity fan culture, on Aug. 27 barred platforms from ranking celebrities’ popularity and restricted sales of fan merchandise. Restrictions are now slapped on celebrities’ public relations firms, social media accounts of fan clubs, and entertainment programs, with the Cyberspace Administration of China on Friday highlighting around a dozen behaviors that it considered off-limits. Platforms are now barred from publishing lists of popular celebrities, and actors and artists will be restricted in how they promote their merchandise to fans. Fan clubs face a potential shutdown if they spread what the authorities deem as “harmful information”—such as …