I'm pretty sure they want it kissing people's asses because it makes users feel good and therefore more likely to use the LLM more. Versus, if it just gave a curt and unfriendly answer, most people (esp. Americans) wouldn't like to use it as much. Just a hypothesis.
You're absolutely right! Americans are a bit weird like that, most people around the world would be perfectly okay with short and to-the-point answers. Especially if those answers are coming from a machine that's just giving its best imitation of a stochastic hallucinating parrot.
Wow, this is really interesting. I had no idea Japan, for example, had such a focus on blunt, direct communication. Can you share your clearly extensive research in this area so I can read up on this?