"I am Antonio Garcia Martinez, a tech entrepreneur who lied to my investors. AMA."

https://old.reddit.com/r/IAmA/comments/5b4tqe/i_am_antonio_g...

and

"I'm an ex-Facebook exec: don't believe what they tell you about ads (theguardian.com)"

131 comments https://news.ycombinator.com/item?id=14250910