Everyone should note that the slides in this blog post are fabricated, and the author of this post misrepresents Tufte and the conclusions of the review board—subtly pointing people in a direction that's the exact opposite of the real takeaways from the investigation. It's almost insidious.
The first time I came across this blog post a few years ago, I found it enraging, and I still do. As I said I said in my personal notes at the time, "The choice to use this fabricated material for this article and the false claims in it—claims not actually confirmed by the sources that it cites—amounts to what would be considered serious misconduct elsewhere." But there's no real accountability here, of course, because at the end of the day it's just some jerk with a blog serving up distorted pop science insights to aspiring entrepreneurs.