I don't think that word means what you think it means. Since "Wikipedia is a bad source", how about the dictionary? http://dictionary.reference.com/browse/agnostic. The most commonly understood definition: "asserting the uncertainty of all claims to knowledge." I see this stupid argument against agnostic as separate from atheism all the time, and it just indicates that you're an idiot. No, it's not in between belief and non-belief. It's simply admitting that you don't know and can't possibly know.

The words may rhyme but the gnostic-agnostic diad makes no sense. .

Atheist incorrect too unless it means "not concerned with this topic"

WEllll. that really helps... I think. Or maybe not.