At the risk of sounding like Chicken Little ("the sky is falling!") I wrote a great deal voicing my point of view, including my very first post on Hacker News (https://news.ycombinator.com/item?id=24742), in which I called Mark a fraud. For expressing my grave and sincere concern, I was met with what could only be described as considerable hostility.
Aware that very few wanted to hear what I had to say, I did everything I could to move onto more interesting and useful work. I don't spend my time worrying about Facebook, so I haven't looked into their ad technology in any depth. Nonetheless, everything in the above video strikes me as spot on, which would also mean that I was exactly right. Facebook's entire valuation appears to be based on little more than false advertising and click farming. As the CEO of a publicly-traded corporation with a supposed market capitalization of $162.61 billion, Mark would still appear to be, as I described here (http://www.aarongreenspan.com/writing/essay.html?id=80), the greatest con of all time.
I hope that based on these findings Facebook finds itself the target of civil actions filed by multiple Attorneys-General and the DOJ, but I doubt very much that our justice system would render a fair outcome even then.