i think it's hilarious that when a guy goes completely off of everything, training eating so much as well as drugs, and loses weight everyone points and says "look he was all drugs". some of the guys from the 80s are bigger than mark is in that picture and they've been retired for decades, so its a pretty safe bet he's off way more than just drugs to look like that.
and yes, mike morris is an example of someone who was built entirely on drugs. that's different.