After a few months of his obnoxious, know it all, boorish behavior I had to unfollow him for my own benefit. No, he wasn’t what he is now, but he was already getting unpleasant and I couldn’t deal with it in my feed.

I agree with your comments, but would like to add that this not a sudden, out of the blue change for Musk. I joined Twitter around 2015 and immediately followed Musk since he was one of the major figures there.