I think of LLM tells like grammatical issues. If you read an essay full of grammatical mistakes you’d immediately start thinking less of the author, even if the essay isn’t about grammar. You wonder if someone who doesn’t pay close enough attention to catch a mistake “their” from “they’re” took attention to the rest of their work. This isn’t necessarily fair because the content of the essay might still be good. But on the internet I don’t have the time to evaluate the quality of every piece of writing I come across. It is very much the burden of the author to, as fast as possible, prove to me that the rest of the article will not waste my time. There is already so much content to read, and in some sense the amount of time to evaluate if an article is well-founded can be unbounded (imagine how long it would take to tell if an article about why a programming language is thoughtful without going out and also learning that language).

I find LLM-isms to be exactly the same as grammatical errors, but worse. At least when writing before you had to take the effort to type every word, so there was a minimum amount of effort you’d need to expend. If you aren’t catching obvious things like “the honest part” then that likely says bad things about your attention to detail elsewhere.