I've said it in a thread a while back on here, and many other times, but agnostic, as it's being used in this thread, drives me insane.
It's not a position. The question is: "Do you or don't you believe in any gods?". You either you do or don't believe, no middle ground exist, and you can be agnostic either way it. Saying you don't know simply does not address the question, it only tells of certainty.
Edit: I didn't mean to come off rude, and try to shut down people's opinions. Just trying to say "Hey, stupid, you didn't answer the question".