As a very occasional, uninvested and disinterested Twitter user, I had no "fear of what it might become".
I do dislike Musk, and I do intensely dislike advertising. The main reason for the switch was mostly because my wife switched, and she is the person I interacted with the most on Twitter.
Putting it another way, I switched so I could still share wordle scores with my wife.
@cmdevans makes perfect sense to me!