I posted on Facebook about how the NSA have a profile of everyones race, sexual preference religion etc- it was in the context of the Australian government digital health record scheme, I basically said no point opting out of that if you already have Facebook. The post was gone within 20 minutes, right off my wall. Facebook is a closed platform now, at least in China everyone acknowledges the censorship, in the west were still cencored but the fact that it happens is also cencored.