Paleo Body Builder! - (See Pic) - The results of Crossfit & Paleo on muscle.
Crossfit advocates The Paleo Diet. Cross Fit and The Paleo Diet say if a Caveman didn't do it, nor should you! Cavemen didn't lift weights, or kettlebels, didn't do burpees, or sets of pushups, they ran and hid from wild animals and predators in a cave, lost their hair, and turned pale and pink.
Nobody became a bodybuilder by "planking". Cavemen didn't beat rubber car tyres. Cavemen didn't have rope yet. So this should tell you something. If you were given the idea or hype that crossfit is just like what paleolithic hominids did, and Robb Wolf said so, you were fed a bunch of Paleo.
Crossfit has nothing to do with man, and everything to do with bilking you and your wife and eating away at your budget so they can push pseudo-scientific fad diet plans.
Cavemen became either rail-thin in warm climates, sinewy, like nigerian marathon runners, with no muscle, or pale as the caveman who lived in a cave and evolved into an albino, or flabby and fat in colder climates as the human body would want to have an extra layer of FAT to insulate against the cold.
This is why the Paleo Diet and Cross Fit has failed when it comes to truly building muscle and is now regarded as unfit for building muscle and bodybuilding. (Remember, you can't do any weightlifting, using bars or plates, cavemen didn't have it!)