The Great Firewall has gotten even more harsh recently, with China dictating that all foreign firms must store their data locally. Apple kowtowed and built a data center there, but expecting Facebook to do so might be a bit of a stretch. In addition to Zuckerberg's main social network being fully blocked, Instagram is as well. As NYT notes, WhatsApp was Facebook's last stand in China and now it looks to be going away.

It doesn't seem like many in the country will notice it missing considering that Tencent's WeChat is native to China and apparently has a more active user base in the region.