Alright Im not a part of this argument so I wont get too into it, but Ill give my 2 cents. Have you ever noticed bodybuilders taking growth hormone/steroids? That increases their testosterone levels, but its a fact that the drugs they take doesnt just increase their muscle size but bone size too. Lifting weights increases bone density so I dont see why it should stunt growth. Im not taking sides here (don't know anyone here anyways) but this is just my $0.02 .