It's morbid fascination for me. Up until a few years ago his outward facing persona/"brand" was just a regular tech billionaire occasionally spinning up interesting new stuff. And then almost overnight it's like he had some kind of mental break and started saying and doing completely nonsensical things. Why? What happened? Was he always like this behind the scenes and it was hidden from us or did something happen to him?
a) Twitter was and to a lesser extent still is an important platform for news and information. And his role in furthering misinformation and division has influenced many people.
b) Musk’s unpredictable antics e.g. going to Trump rallys and setting up SuperPAC, being a government contractor and talking about Kamala assassinations is controversial and often newsworthy.
c) Rumors about Musk working with JD Vance and Peter Thiel to effectively run the government on behalf of Trump.