I assumed it was a reference to this - https://en.wikipedia.org/wiki/Mechanical_doping https://en.wikipedia.org/wiki/Mechanical_doping From a bit of reading, i

I assumed it was a reference to this - https://en.wikipedia.org/wiki/Mechanical_doping https://en.wikipedia.org/wiki/Mechanical_doping From a bit of reading, it sounds like there's a fairly widespread impression (or at least suspicion of) cheating. And that enforcement is quite weak, because the authorities care more about preventing public scandal than about preventing actual cheating.