They have A.I. that hides comments that people make on News Vendors and the like, but hides this fact from these people's accounts, on the basis of arbitrary content criteria. People encounter it, eventually note that their posts are deleted from the usership's view, but they are still visible to them and declare Zuck a commie. This happens on G+ too, another good example of randomly ascribed censorship, also in a cheeky hidden way. The vast majority of people want freedom of speech instead this situation, so they are left with a very bad taste in their mouth. They think they have found a monster! What does it take to sell and what does it take to win?