Re: TUE secrets?
@Voland's right hand - "Frankly, the fact that quite a lot of top level USA athletes have successfully applied for "medical exemption" for performance enhancing chemicals should be public as well as all applicants and what chemical were they exempted from."
Seeing as you're making a medical assessment about the performance enhancing effects of these chemicals on the athletes I assume you're suitably qualified in medicine?
The *other* reason for keeping these records confidential is the same as the 'baseline chemical levels' and testing result scores, used to determine whether an athlete is doping or just normally has higher levels of certain chemicals and is within tolerances. It is very specific to each athlete, isn't something that the public can understand, and worse, to the *untrained* eye can seem to be evidence of cheating.
For (simple) instance, I take steroids. Doping right? When I say that these are in an inhaler to prevent asthma, is it still cheating? You could argue that this is performance enhancing for me, but I would argue (and it's the position most sports take) that this isn't cheating or unfair, it just prevents me from having my performance impaired. If I was an athlete and you saw the chemical on this list, you might assume I was getting away with something. The individual circumstances matter and even for a professional athlete are private.
WADA decided that qualified people are better at assessing the results than me. But obviously not you with your many qualifications in biochemistry and medicine.