I'm an atheist... but I don't make a big deal about it. I don't go door-to-door handing out fliers inviting people to not worship with me or attend our semi-annual atheist potluck single-mingles. And while I don't think it's necessary to promote atheism as a "thing" (I actually think Christianity should join us in the non-promotion of their beliefs), I certainly don't mind the new billboard campaign you may have seen around town called, "This is what an atheist looks like."
It's a cute idea, showing normal looking folks who are atheists, with the obvious intention of "un-demonizing" them in the eyes of judgmental Christian types. HOWEVER! I have to admit, I got a good guilty laugh out of this bit of spray paint can alteration.
I'm sure he's a sweet guy and all—but c'mon... you have to admit he makes a great devil! The only thing missing is a word bubble with him saying, "BWAAAA-HAAA-HAAAA!" (And if you want to get technical about it, if Satan really existed, he would totally believe in God. Soooo... never mind?)