-snip-
I initially dismissed your original link because "mmo-champion" just sounds like it'd be oriented towards a one-sided debate (fedora-wearing scrublords).
Anyways, that was actually rather informative, but the problem is "agnostic" has pretty much become ingrained into our culture as the neutral stance, it'll be a hard thing to drop from daily usage but it's definitely possible. That, and people REALLY don't like being associated with r/atheism (seriously those guys are some of the biggest forgetasses I've ever seen/heard of).