This guy can be considered a "controversy magnet."
If this guy wants to draw fat scuba-diving animals,
then let him do it,
it's not hurting anyone,
even though some may call this kind of behavior concerning,
plus, he has autism.
Here's my advice: It's best that you let this guy do his thing, or just leave the page altogether.
Not that I'm into this kind of stuff, I just want to inform everyone that you really shouldn't judge someone by what they draw, who knows, maybe this guy might be a pretty kind person!