On WikiAnsers, the most likely reason people answer 'why' questions with "yes" or "no" is that they skim the question, rather than reading it thoroughly.
When talking to people face-to-face, it could be that the person is attempting to avoid answering the question.
Yes. People just like you and me are answering these questions.
Yes, people do answer these questions, usually if they know the answer and feel like taking the time to do it.
yes people who answer the questions are anonymous. like me i am anonymous.
yes, it wags it when people answer questions like this one.
yes,we even have people answer any questions or tell the people it does not make sense
Yes I do. I especially like reminding people to spell check before posting all of their horrible spelling errors!
yes.
yes
Do you mean like this question that adds no value? Yes.
Yes
Yes! Most people select categories and their sub categories that are of particular interest to them, to answer questions. For example if they like animals, they would select questions from the animal life category.
Yes.