I'm not sure, but he could be referring to the case filed against Media Matters. In any case, you're right, nobody will be forced to come back and yelling the f-word after them will likely not persuade anyone either. I think Musk has principles, but they reliably go down the pipes when he's losing it, which seems to happen regularly.
True, but... personally, I've never been in the position of having 40 billion dollars vaporize because of my bad decisions. I like to think (or hope) that I would stick to my principles in such a situation, but I can't be sure I would...
40 billion is a ton in absolute terms but is only, I don't know, 1/7th his total wealth. Many people have had that kind of loss without turning into raving lunatics.