When a person says, "I'm having a problem" and the response is, "Well I'm not having any problem, buh-bye!" it in effect says "I don't care that you have a problem."

Often the real problem for novices is that they don't know enough to ask the right question; good questions require that you already be pretty close to the answer. So the real process of helping somebody with technology often begins by turning a bad question into a good question.

So basically, I think "works for me" is disrespectful. Mostly I see it used defensively; the goal is to make the querent go away again. If somebody doesn't want to help, fine, I respect that. But in that case, they should not put themselves into a position where they are answering questions from novices.