They are all doing it and only the dumb ones are being caught
100% accurate statement!
I am glad you mention recuperation, because the average joe doesn't realize the edge you get on the "juice', steroid or HGH.
The 90s was the golden age of performance enhancing drugs and the testing was even more limited.
One thing that it also helps with, is confidence. A lot of players or fighters have the edge, thanks to what they're taking. It's almost a placebo effect, though the physical & performance increase is really noticeable, at least 15 to 30%.
It must have been so frustrating to compete against juiced up freaks of nature!