Papers I read on arxiv mostly say that persona prompting changes tone of voice and attitude, but not the quality of the answer, at least statistically. For exa

Papers I read on arxiv mostly say that persona prompting changes tone of voice and attitude, but not the quality of the answer, at least statistically. For example: https://arxiv.org/abs/2512.05858 https://arxiv.org/abs/2512.05858