I would use any and every (legal and non-health-threatening) drug to do my profession better if I could.
As for the records thing, there are ways to statistically correct, in a rough way, even for white-only baseball. E.g. you assume the average or replacement-level player is worse. I doubt that steroids will make historical analysis of baseball any more difficult than it already is.
Ugh, I'm so sick of this issue. I look forward to the nanotech and exoskeleton scandals of the 2030s. I've also read that Jorge CantĂș has been considering replacing his eyes with some sort of digital imaging system.