Many of us have spent a lot of time convincing new(ish) lifters that squatting is not dangerous, then they read crap like this and suddenly they feel vindicated.
As have I...again, I am a huge believer in squats. That wasn't the point I was trying to make. And I really don't see how what I am saying is "crap" if Mark Rippetoe himself does not recommend it for beginners. It is pretty damn clear that I wasn't arguing against squats as an exercise.