That #Facebook memo is very damning: https://www.buzzfeed.com/ryanmac/growth-at-any-cost-top-facebook-executive-defended-data
Whether the author "meant it" or not is almost irrelevant. It proves the top brass at Facebook are well aware of how abusive their products are, they've debated and discussed, and decided to not right the wrongs.
It's malice, folks.
I mean, many of us assumed that already. But now we actually have it in black and white from a senior executive. That matters.