My friend did bodybuilding for a good 3 years and actually got really jacked. Was lean and had a good amount of muscle on him. He then go into crossfit somehow and he's probably been doing it for 2 years, just looked at pics from his recent crossfit competition and he lost like all his muscle mass. I would say he more resembles a long distance runner now.
I went to school with this kid. He is literally the only crossfitter I know who still looks huge.