>Most people use ai to rewrite or clean up content

I think your sentence should have been "people who use ai do so to mostly rewrite or clean up content", but even then I'd question the statistical truth behind that claim.

Personally, seeing something written by AI means that the person who wrote it did so just for looks and not for substance. Claiming to be a great author requires both penmanship and communication skills, and delegating one or either of them to a large language model inherently makes you less than that.

However, when the point is just the contents of the paragraph(s) and nothing more then I don't care who or what wrote it. An example is the result of a research, because I'd certainly won't care about the prose or effort given to write the thesis but more on the results (is this about curing cancer now and forever? If yes, no one cares if it's written with AI).

With that being said, there's still that I get anywhere close to understanding the author behind the thoughts and opinions. I believe the way someone writes hints to the way they think and act. In that sense, using LLM's to rewrite something to make it sound more professional than what you would actually talk in appropriate contexts makes it hard for me to judge someone's character, professionalism, and mannerisms. Almost feels like they're trying to mask part of themselves. Perhaps they lack confidence in their ability to sound professional and convincing?