Everyone there is so insecure about being a know it all. It's really tiresome. I find how deeply hurt they are about being told when they are wrong just as sad as how eager they are to tell other people they are wrong in the way designed to make that person feel maximally bad about being wrong.
But at least if they tell you you are wrong they are right about it. On X you will be told you are wrong in the same way but it will be lies.