When I get a message from a co-worker that seems to have been written by an LLM, I am incredibly turned off and instantly think less of the person. It can be easy to spot: key words bolded, acknowledging that I'm right, longer and with a different tone than their typical messages, with neat bullet points.
It feels a little disrespectful. It feels a little pointless (why am I bothering talking to you if I can get the same result from the AI). I have no idea whether you've given the problem any actual thought, or if you're just copy-pasting an answer. I have no idea if you actually believe what you're telling me (or if you've even read it or understand it).