My issue is that I mostly ask questions to try and understand their position. Then their entire argument starts to make less sense. So they stop answering my questions and say that what I’m doing is dumb because I’m asking questions I know the answer to. It’s like they just want to have a shouting match which I don’t engage in. But then when they start insulting, I wonder if they are stupid or just immature.
Discussion
It's because people have a limited amount of time in a day and they likely wouldn't want to repeat the foundations of their position to everyone they meet.
This is why we divide sets of ideas into schools of thought so that we can build on them instead of starting from scratch. Kind of like SDK's for ideas to which we can add our own creative thinking.
Also, repeated questions in a private conversation makes sense, but in public, it can give the other person suspicion that you are doing it just to put their ideas down in front of other people, even if you do it in good faith.