The part he was referring to was using a glitch with the weapon as cheating. He said that the extra precision damage is bugged and applies when ADS as well as hip firing when it was intended to only work on hipfire. If this is case then technically using the weapons glitch to your advantage in crucible does violate TOS... However I don't know if the weapon is in fact bugged or not. Speaking in "what ifs" here Though you should probably pick up some reading comprehension skills...