I would like to know why some feel it necessary to come into a Question and point out how others are wrong instead of just giving their view on it?

I don’t know about most of you but when I ask a question I like to hear all answer wither or not I argree, disagree, think it is wrong and/or think it is right. Why do some think they have to argue and push a point that they know better than anyone else. This shows disrespect and sometimes pushes others out and makes it so the question will not be answered with all views. What is up with that?