Bumper stickers by themselves are almost always questionable automotive accessories. I mean, it's great that you have a message you want to send the rest of the highway. But it doesn't take long for the stickers to become unsightly and dirty. They can also hurt the aesthetics of your car and come off as a little lame.
But even in the world of bumper stickers, there are some that manage to be more annoying than others, and for this religiously-themed one, it's all because of a strange design choice that's befuddling Twitter users.