I think part of it is that some of us are not used to reading (or writing) praise, apart from seeing the over-praising of LLMs, such that seeing praise in the wild makes us think of LLMs. This being used to lack of praise is partly reinforced by certain tech cultures (e.g. keeping ego out of code review, this implies not wasting time on personal praise/criticism but keeping remarks focused on the technical, and keeping in mind the distinction between technical and non-technical critique).

I have become oversensitive to this, and my brain is probably generating a lot of false positives. I don't think it's necessarily the case here, but I've wondered if people who use LLMs a lot take over some of its idiosyncrasies and in a way start sounding like one a bit. A strange side effect is that I've come to appreciate text with grammatical errors, videos where people don't enunciate well etc because it's a sign that it's human created content.

When you use LLMs all day, their writing style rubs off on you. From wording to structure.

It's like when you interact with any other piece of language oriented media.