What doesn't ring true about this article is that the advertiser would spend $100K/day without building up to it with a whole lot of testing first.
Facebook may have declined requests for comment, but we are still only getting one side of the story, and I cannot completely believe this one side. There's more to it.
That is alluded to in the 5th from last paragraph: "Facebook's terms of service forbid third-party verification of its clicks". What reason, other than fraud, would they have for such a clause?
Facebook may have declined requests for comment, but we are still only getting one side of the story, and I cannot completely believe this one side. There's more to it.