Yes thanks for posting that espeically. the part at the end.
Basically what you're saying is that even if the stats we 95% accurate, they're worthless because they're not perfect. I love it of course.
I guess you don't believe in batting average, as it's an approximation.
At what point did I saw they are worthless? I have REPEATEDLY said they are useful in giving you a good idea on who is good, average, or bad defensively. But how anyone can define the stats as accurate (or accurate enough to use in a value based formula) is ridiculous.
And who says they are even 95% accruate?
And the whole point of the article is to PROVE you wrong about how defensive reputation can create bias. It doesn't change the fact that most stats don't account for defensive positioning (which can have a HUGE affect in stats like UZR).