i have met people like this and never thought they were stupid, but really rude. The point is not that they not only do not care if they look stupid, they also

i have met people like this and never thought they were stupid, but really rude. The point is not that they not only do not care if they look stupid, they also don't care or enjoy if they confuse/ create unease in their conversation partner by witholding critical information to let them understand their reasoning. the best case is something like aristotle where at the end of a conversation there is some revelation that makes you take another standpoint. but the worst example is asking for a computer in the smallest box without sharing the WHY. this action likely shows that someone either treats the partner as a monkey working in a store whose human whish to understand is worth less than the energy to give a reason or it shows an autistic enjoyment if creating confusion because normal human interactions are perceived as boring.