The linked article shows that LLMs can be used to plagiarize content through rewriting. Then he gets SEO'd out of it. But it doesn't demonstrate that AI is just plagiarism.
It doesn't even show that LLMs can plagiarize through rewriting, is just asserts that. The audience is expected to already believe it. And, fair enough, it's true. But I can't make any sense of 700+ upvotes for what I'd say amounts to a 200-word disjointed HN rant comment if it even met site guidelines.
Because it isn't...
These people freaking out about this stuff are... kind of weird.