It's not so much the grouping of 3 or way it's supposed to be punchy specifically that's the problem, that is just one example of what gives the article the "LLM Generated" feeling since whatever cheap model people are using for this kind of spam has some common ticks.

I use groupings of 3 and try to make things punchy myself sometimes, especially when I'm writing something intended to sway others. I think the problem with this article is the way it feels like the perfect average of corporate writing. It's sort of like the "written by committee" feel that incredibly generic pop music often has.

When I write things, I often go back and edit and reword parts. Like the brushstrokes in an oil painting, the flow of thought varies between paragraphs and even sentences. LLMs only generate things from left to right (or vice versa in RTL languages, I presume). I think that gives LLM generated text a "smooth" texture that really stands out to anyone who reads a lot.

I'm not a native speaker and my level of AI recognition is higher than 99.999% of native speakers - and I'd be happy to be tested on it for proof.

The biggest factor is simply how long you've been using LLMs to generate text, how often, how much. It's like how an experienced UI designer can instantly tell that something is off by a single pixel off upon first seeing a UI, whereas if you gave me $200 to find it within 10 minutes I might well fail.

Aside from particulars like the set of 3, LLMs add a lot of emotive language which doesn't mean anything or is a repetition of already established points. Since they can't add any actual substance beyond what was in the prompt, the only thing they do is pad the prompt with filler language.