Say zài jiàn to puns in the Chinese media. The powers that be say that puns in the media, including headlines, online discussions and advertisements, stand to “create cultural and linguistic chaos” and may mislead children.
Puns are one of the most interesting aspects of the Chinese language because the tonal language using the same sound with different inflections for completely different words. Read all about the ruling here: http://www.theguardian.com/world/2014/nov/28/china-media-watchdog-bans-wordplay-puns.