Re: TUE secrets?
For (simple) instance, I take steroids. Doping right? When I say that these are in an inhaler to prevent asthma, is it still cheating
It may be cheating or maybe not. It should be a matter of the public record that you have been allowed to take specific medication which is dual use (as a medicine and as a performance substance) for a specific medical condition if you are a competitive athlete. The reason for this are the weaknesses in the tests in use.
To be clear - I am not a medical professional. I am a (now ex - gone IT) professional from the area which is used to "prove" all those "allegations" which is Chemistry (I also have most credits towards a second MSc in Mol Biol too so I know how said chemicals work at a molecular level as well).
So coming from a purely professional standpoint, using the standard sampling methodology for an athlete as used today which is 1-2 samples at competition and an occasional random test you _CANNOT_ reliably distinguish between medical and performance enhancement use. The standard tech is chromatography + gas/mass for most steroids + a battery of additional tests including antibodies for various proteins like growth hormones, etc. None of these provides correct quantitative results using a one-off sample. They are qualitative in nature - is the substance present or not.
In order to get a quantitative measurement you need to calibrate them "metabolic rate" tests - you are given a dose of substance X under controlled conditions and the results of the test are calibrated for you based on what you "pee". It also requires much more regular testing.
IMHO, this is extremely intrusive so having the exception LISTED and being asked to move to this regimen only if side observations by _OTHER_ independent medical professionals (other athletes have doctors too you know) is actually the lesser evil.
In any case - WADA is doing none of that, the system as it stands is rigged.