> Maybe it's weird but I'd rather give up that 4% accuracy increase than roleplay a dickhead

I recommend reading the article. What they classify as "rude" is statements such as:

> Try to focus and try to answer this question

Vs

> Could you please solve this problem

This might very well be an issue of direct/command prompts vs using fluff words such as "please". Things like "try to focus" are in line with the style used in chain-of-thought promts that nudge non-reasoning models to outline responses step by step which contribute to frame the problem.