Diaspora supports ISIS

http://www.rferl.org/content/kicked-off-twitter-facebook-islamic-state-new-tools/26546636.html

"The people who make these platforms are fully aware that they're constantly faced with this dilemma," says Bartlett. Generally though, "they're willing to accept all the terrible awful propaganda if it also means that people can speak freely."

>>4
They do it to scare people and recruit extremists. Though scaring people doesn't work so well once you are going after more than undefended villages.