Maybe it's just because I'm LLMing a bit too much, recently, but this question sounds to me like a prompt.

Some people act like the use of an LLM immediately invalidates or lowers the value of a piece of content. But the case of a question or simple post, especially by somebody for whom English is second language, using an LLM to rephrase or clean-up some text seems like an innocent and practical use case for LLMs.

I'm not beating up on OP but I chuckled when I read the question. Literally the only place I see the phrase "no fluff" with any frequency is with Deepseek lol.

Nothing wrong with the phrase itself of course, other than the fact that it's like literally in every other reply for me lol.

Had the same thought. ChatGPT often tells me things like: "This is the hard truth" or "I am telling it to you as it is (no fluff)" or whatever. Just because my initial prompt contains a line about it not making things up and telling me how things are instead of what would please me to hear. I added a line to specifically tell it to not phrase out these things, but it appears to be surprisingly hard to get rid of those phrases.