a few things strike me here.
adonis is still retarded, no surprises there. the reason dimas is as big as he is is because he's an olympic lifter. the majority of his lift is technique. find someone who can raw squat around 750 with an olympic stance and chances are they'll be a pretty big guy. you can take a look at shane hamman, hossein whateverhisnameis, or john bernor for evidence of that one.
fiber recruitment is also a big factor, which is far more advanced in a weightlifter than a bodybuilder, so 'smaller' muscles move more weight, because more of the muscle is being used. then we get into the whole type of hypertrophy thing. genetics too. after all, johnnie jackson outsquats ronnie but his legs are half ronnie's size.
if gh15 is a pro and he's not bullshitting, there's no way he'd be dumb enough to tell us even anything remotely identifiable. top 15 and non-english native narrows him down way too much. i wouldn't be surprised at all if, supposing he was in the olympia, the non-english was there to throw us off. cq's pretty spot on that his mistakes seem random.
your ip can be traced eventually. your average joe or pi would be stopped by proxies, but not the big guys. youre talking about people who can retrieve information from a hard drive that's been set on fire. if you think a little proxy tool is going to hide you from the fbi you're mistaken.
the fbi isn't going to give a flying fuck that someone on a message board says he's a drug dealer. if they went after everyone who said that on the internet that's all they'd do. all by itself that makes gh15 pretty insulated.