[icdtea]

You can do this with a custom filter list in Ublock Origin, no custom extension necessary.

[coldpie]

I'm thinking something that would actually use HN's "Hide" feature, so other stories will populate the page after the AI ones are hidden. Is that something uBO could do?

[icdtea]

You make a good point, I don't believe so. I currently block most LLM/AI threads and some pages can get quite sparse. Would love to check that out if you get around to putting that together!