Sure, they did. That's why Frank Thomas suffered a gradual decline in power numbers and was not hitting nearly 40 home runs when he was 38.
Are you just trying to play Devil's Advocate about Jr. and Frank Thomas? I won't say Thomas never took PEDs, since I haven't personally seen him every day of his life. But, a question I bring up. Why would Frank Thomas be an advocate for PEDs testing throughout his career, if he would get caught himself? That just seems stupid.
As far as the Hall goes. Whatever. I couldn't care less about guys like Sosa or McGwire. Bonds and Clemens I say should be in. I'd say Bonds was well on his way to a HOF career before the BALCO shit, he was just such a diva that McGwire and Sosa were hitting home runs and he couldn't stand it. At least that's how I feel. Regardless, dude took them, but he is still one of the best to play the game. He should be in eventually. Clemens, more unknown, but he is still one of the best pitchers ever, I think he will eventually make it.
Now where I think the whole BBWAA thing is stupid is that there are those that don't vote for guys simply because they don't want a guy to go in on the first try. That's fucking stupid. Craig Biggio likely makes it next year because some ********s just didn't want to let him in the first year. That's crap.