No that is true. But in my point of view he should be honest. Doing the real proof of work. steroids and stuff lower the proof of work with a margin great enough to be considered viable to get better results for less work.
Many PED users say that they do have to work hard to sustain their PED blood levels and keeping balance between fu**ing up their body and getting better results.
I think that is not the strongest standing argument. But that does not mean that the person himself is immeadiatly bad on itself.