Most stories about Musk are flagged regardless of the topic. He might be using bots, he's certainly petty enough to do so.

Because enough users flag it.

I usually flag anything related to the US political circus.

Purely political posts are against the guidelines: https://news.ycombinator.com/newsguidelines.html

Musk stuff tends to be; his horde of weird sycophants is alive and well.