I just got into the whole exercising thing a few months ago. The entire culture/industry around weight lifting is so hard to figure out. Everyone has different opinions -- usually really strong ones too -- but few actually defend their assertions on factual grounds. So, it's purely out of self interest when I ask "Why is it bullshit"

I just want to know about these things! Hell, I still don't even know if I should be holding my breath or breathing out while squatting... The pool of information about weight lifting is that muddled.