“[...] sound like a creepy overly friendly creature from an advertisement.”
That's the preferred mode of communication in some corporations. I once had a co-worker who caught flak that she didn't use enough emojis, and therefore “seemed unfriendly”. (I included her gender, because I suspect that played a role.) Reminds me of the scene with “How much flair is required?” in Office Space.
I think this is why the LinkedIn crowd loves LLMs, that kind of hollow, performative cheeriness is the ideal which is being aspired to.