I'm gonna get flamed for this but many of these guys didn't improve in the right direction.
Going for general mass won't improve their standings in bodybuilding contests. It would be amazing if they actually spent 5 years trying to get certain muscles to grow, ie Bicep peaks and calves, instead of trying to be the next Ronnie Coleman or Markus Ruhl.
Theres actually such a thing as too much size, it causes a distended a guy, bad proportions, etc. Don't look for other bodybuilders to guide you, they're the Chris Cooks of the world that think size is the reason they don't win contests. A 12 year old browsing an old muscle mag could tell these guys why they look terrible, it's not your freaking size, its your freaking gut and terrible aesthetics.
No offense, but they're literally "misinformed", its almost humerous, these guys spend 5 years working hard trying to gain mass, then they do it and they still rank out of the top 10 in most contests. I got news for ya, it's not FROM YOUR FREAKING SIZE. PROPORTIONS, AESTHETICs, YOU LOOK LIKE SHIT. GEEZ SOMEONE HAD TO FUCKING SAY IT.