After deleting my Facebook account I decided to reorganize my social media life. There are many, many arguments why to leave Facebook: a "simple" privacy preference, unwillingness to allow mass-manipulation of votes by data mining companies, fear of a potential addiction to likes/shares and shortening our attention spans.
For me the most important was the realization that Facebook is manipulating me directly. I began seeing that only a small subset friends and news articles appear in my feed. I could try countering that with few options like "unfollow" and "close friends", but that would only give the giant more data about me! While I somehow accepted that every single like I click gets quantified and sold, the outrage porn Facebook served me every day and a strong disincentive to contact my less-polarized friends strongly affected my worldview and well-being.
I no longer wish to take part of that. I'm not interested in outrage porn and clickbaits, especially knowing how much I enjoy them. Instead, I want to read more worthwhile articles, blogposts and books …