I'm not much for YouTube drama but never liked Mr. Beast's child lotteries and wealth glorification. If you wanted to improve society you could put that money into actual charity, but of course that isn't a profitable strategy. Oh well.
They apparently did a pretty large scale test to decide if a video performs better when the mouth ist open or closed. Open mouth performed so much better that they even retroactively photoshopped their old videos thumbnails to add a open mouth smile to them. That might also contribute to them appearing creepy since they only changed the mouth.