Well, if you reject all answers, then clearly you won't get any answers.

It depends on what you mean by philosophy. I consider philosophy to be a discussion about our beliefs of the fabric of the world. If actions come from belief (and I think they do) then philosophy is one of the most important things we could possibly talk about. My beliefs about philosophy affect every single thought and every single action. I agree that some people take it too far, and sometimes it degenerates into pretentious drivel, but that doesn't mean it always is.