Today is an official day of National Mourning in China for the people that died in the Qinghai earthquake, exactly one week ago. All public entertainment will be suspended today, so also all entertainment websites were requested to cease operations for 24 hours. Our Chinese sites game.com.cn and xiaoyouxi.cn changed their design to reflect that day of National Mourning. After the Sichuan earthquake in 2008 we did something similar, but at that time we had to stop our sites for 3 days.
Like you said “requested”; it’s not like you have any other option 🙂