Facebook admits their system is designed to dupe people and treat Facebook users like, in Zuckerberg’s own words, “Dumb Fucks“.

We connect people. Period. That’s why all the work we do in growth is justified. All the questionable contact importing practices. All the subtle language that helps people stay searchable by friends. All of the work we do to bring more communication in. The work we will likely have to do in China some day. All of it,” VP Andrew “Boz” Bosworth wrote.
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“So we connect more people,” he wrote in another section of the memo. “That can be bad if they make it negative. Maybe it costs someone a life by exposing someone to bullies.
“Maybe someone dies in a terrorist attack coordinated on our tools.”

Source: Growth at any cost: Top Facebook executive defended Data Collection In 2016 Memo — And Warned That Facebook Could Get People Killed
Now we understand the Facebook team’s Likes, Comments, Posts, and can evaluate their interests, behavior and their mental health.
Facebook is a global criminal enterprise. Facebook is not your friend.