I would categorize you as one of those so-called experts. Hence people have the right to view you as having no clue.
Example 1:
Its also worth asking the question as to how many 90-mph fastballs existed back in Hank Aarons days. And why so many more now? Might it be that *gasp* Barry Bonds is facing pitchers who might be using performance enhancing drugs, as well?
Are you saying that illegal performance-enhancement drugs are the main reason that 90mph fastballs are more common than in Aaron's days? Are you therefore implying that targeted-training techniques, improved nutrition, medical advances have nothing to do with old sporting achievements being topped? Long jump, high jump, marathon, shot put, pitching, hitting yada yada yada?
The "everyone does it" defense is weak. The "more-than-you-would-guess" position is the more realistic view and avoids any "all-or-none" preachiness.
Barry Bonds is a talented baseball hitter but he still deserves every bit of criticism that is coming his way.
Bob Feller played before and after serving in WWII. I'm pretty sure he never used steroids (he's still alive and well and living in the Cleveland area). I don't think Nolan Ryan used steroids either.