Eating extreme amounts of food is so old school. If you look at Jay Cutler (#2 in the world) the only difference between his on and offseason diet is basically the quantity of food (measurements) and the amount of beef in the diet. The food choices are extremely similar and not really considered dirty. I think one should eat around their own genetic potential but, under no circumstances rely on processed fast food BS to gain muscle. Muscle responds so much better to whole foods, thats why so many new bodybuilders are not going as crazy in the offseason as they used to. Eat to get big, not fat.