The advantage of the term "USER" is precisely that it's inclusive: it doesn't draw a sharp line between the people who spend too much of our time writing for the Wikipedia, those who do a few articles on things they care about, and those who come here looking for information on something specific.
It also emphasizes that *the purpose of Wikipedia is to be a usable encyclopedia.* That I enjoy editing it is good, because it supports that goal: but the purpose is for Wikipedia to be *used* as a source of information.