Talk about taking Advantage of a bigger name. Honestly dude you could have just dmed him in the first place. Why try and discredit someone PUBLICLY who always credits others in his videos. Also welcome to YouTube bud, it's a competitive and not so fair place.
My point is, this is unnecessary. This guy just wants attention. Have you seen ninja, pewdiepie, markiplier, or any other top youtuber personally point out every single person who "steals" a 30 second clip? No. they dont. I'm all about the principle but let it go he corrected it.