I'd be happy with Holy Rollers if they weren't all-Christian or weren't even mainly Christian. We have this stereotype in the United States of Protestant Christian groups becoming extremist - other groups could go down that path too. Since we're discussing Real Magic versus Game Magic anyhow, my money would be on Wiccans/Pagans. I mean, most gaming stuff does stereotype the Wizard/Warlock/Witch/etc., and if you're a person who believes that those are sacred callings that could get pretty offensive. Of course, there aren't a tremendously large number of people who consider such things sacred, and such people are rarely easily offended...but this is a comic, there might be more Pagans than Christians here. Jews, Muslims, et cetera have histories of being reluctant to accept magic-like things or witchcraft-y stuff - they could do Hunter-ish things, too.
Better yet, since there seem to be a lot of Hunters, it could be an interfaith deal...like the conservative Muslims, conservative Jews, and conservative Christians who've banded together to oppose pro-choice laws and gay marriage. And the has-beens could join in the geek-hunting, too.
If Geeks are "Creatures of the Night," perhaps different ones get different powers.
Do not meddle in the affairs of dragons, for you are crunchy and taste good with ketchup. -unknown
You broke the universe - my DM this one time