No need for an algorithm to decide what is worth seeing.
I'd welcome per-user curation tools like OP's which don't affect the content for the rest of us.
> Off-Topic: Most stories about politics, or crime, or sports, or celebrities, unless they're evidence of some interesting new phenomenon. If they'd cover it on TV news, it's probably off-topic.
> If a story is spam or off-topic, flag it. Don't feed egregious comments by replying; flag them instead. If you flag, please don't also comment that you did.
Flagging is a way to shape what types of content takes up the finite amount of attention available on HN. If everyone used it (only) in the way the guidelines ask you to, the front page would look very different on a given day.
I am happy on my personal Mastodon instance and occasional visits to HN. You might be too if you allow yourself to be.
That being said, there are clearly multiple active automated influence operations happening on X all the time. If Elon wants X to stick around, it would be in his interest to put a stop to those. The default feed is full of posts from those bots; that's also a big problem they (X) needs to fix.