Moderate? He spends a significant amount of time flirting with alt right accounts and posting memes with some SERIOUS dog whistles. I follow him on Twitter, and I cannot remember a single time he has taken an even slightly left-of-center position on any issue at all other than electric vehicles and climate change (for obvious reasons). His positions range from right-of-center to alt right.
His behavior has more than a touch of the narcissism that we see from a certain former president: Musk basically likes anyone who praises him and lashes out at anyone who criticizes him. Remember the cave diver when the Thai soccer team was trapped in that cave? A lot of this started (or at least got a lot worse) when prominent Dems started calling him out by name (Warren, AOC, Bernie, Robert Reich).
To be fair, a lot of those attacks were unprompted and basically just used Musk as a punching bag to score political points. For example, Warren relentlessly used him as an example of someone who "didn't pay his fair share" despite Musk paying the largest tax bill for any individual in the history of the world last year. It was a specious attack designed to endear Warren to her own base, facts be damned, and most people would have ignored her because - at the end of the day - he's got $200b, and she'll never get the wealth tax she so desperately wants.
But Musk, who is tremendously thin skinned and narcissistic, didn't recognize those attacks as the bland political claptrap that they were and instead took them deeply personally. And, his response was to seek affirmation from the people who agreed with him that those far-left dems were very very mean: the far right.
His public online behavior is now so overtly right wing (tilting towards alt right) that it's hard to see this cycle ever being broken. The further he goes, the more the left scorns him and the right exalts him. Which, in turn, causes him to go even further right.
As I said before, it's sad to see.