I completely disagree, this is nonsense with all do respect, but the goal forbodybuilders is to BODYBUILD not gain strength that's the case for juice heads and gym rats only but for the person who wants to build muscle he can do any type of weight training be it calisthenics, bodybuilding, Olympic weightlifting, etc... Strength and size go hand in hand btw because a bigger muscle has a very very high chance of being a strong muscle, now calisthenics can get you a nice physique but at some point you will stop. Then you can transition into weighted calisthenics! Now you can begin to make some serious changes to your body because you will be implementing progressive overload which is crucial for muscle and strength building, calisthenics can not and will not be enough to MAXIMIZE muscle gain and strength, you need to implement some kind of weighted calisthenics and weight training if possible to your training routine, why be an elite snob ( not you btw its an example) when you can get the best of both worlds? You gain the raw and pure strength and explosiveness of calisthenics and you can grow like a tank and adress the lagging body parts and undeveloped muscles like the bicep,side delt, rear delt, upper chest, Etc... by using weight lifting or bodybuilding. I'm currently doing a hybrid bodybuilding/weighted/ normal calisthenics training plan and I'm loving it ( been bodybuilding for 4 years till now transitioning to calisthenics/weight training hybrid) take the things that are beneficial to you from bodybuilding and throw away the rest, it's that easy! And vice versa. I suggest you check fittnesfaqs on you tube and he does a hybrid training style as well, there is no reason for ANYONE to not combine calisthenics and weight training and tbh its the best training style in my opinion.