I think that most long time, serious, hardcore fans know about the extreme drug use along with the unsavory conduct of some top male/female bodybuilders. While I don't approve of this, I am a lifelong bodybuilder and fan of the sport.
The only practical thing for any fan to do is accept it , laugh about it , forget about it and ENJOY bodybuilding.
I know a lot of posts come up on various issues with the "dark under belly" of BB. I have been involved with a number of these posts myself , with many others here on the forum.
But , take it from me, too much worry or focus on this negative crap can suck the life out of your enjoyment of BB.
Just my 2 cents