Just my observation-not a judgement. So I'll do this in a case study fashion:
The man was born in 1972. (Arnolds third olympia win) He trained like his hero's and then had a back injury.
After, his rehabilitation and persistence, he came came back.
The man is now 39yrs old and weighs 220lbs HIS BEST CONDITION @ 6'0".
People say he was a farm boy who loved to train.
To compare, Brock Lesnar has the same story, and he had a more devastating disease with inflammatory bowel syndrome (IBS). The latter was caught in the late 90's early 2000's with GH.
By these facts and many of your bodybuilding observations, you can draw a conclusion.
(if both are telling the truth)