The saddest part of this whole thing, is that the entire exchange was childish and petty. Mr Diverman said stupid shit to Elon, Elon knee-jerk tweeted back, they got into a tit-for-tat, Mr Diverman told Elon to ram the sub up his ass, and Elon grabbed the closest epithet he could think of and threw it back.
Childish, petty, and pointless, on both men's part.
But Elon? He's the current tallest poppy, so he gets lambasted for a stupid comment, and nobody even mentions he was responding to a personal attack/threat in kind.
It was schoolyard idiocy, pure and simple. And it just demonstrated that everyone is just another person like you... no matter how much fame/money they have.