SpaceX is a private company, it doesn't have a stock price. Musk tweets out things that effect the stock price of Tesla quite often. So someone falsely claiming he got his dick out and offered that employee payment in the form of a horse for sexual services doesn't seem like the kind of thing Musk would worry about if it wasn't true. Also a horse? How random is that as a payment. Musk isn't like your average celebrity. He can't be cancelled, he doesn't work for anyone that can fire him, he doesn't have sponsors that will drop him. You are comparing apples with oranges.