Why would atheists do that

Maybe get on a soapbox and scream "you are not going to hell" and solicit donations.

Life has to be hard for The Onion's writing staff these days. Real life is crazier than parody right now

Actual Atheists, as far as I'm aware that is, don't involve themselves in such radical activities, etc, as do the 'Fundie Faithfools' in this world.
Atheists, for the most part, do NOT hold protest meetings at Gay/Lesbian Conventions, Abortion Clinics, go around door-knocking and preaching, hand out Atheist pamphlets on street corners, public places, etc, simply because we see it as something that is beneath our decency and dignity to do so.

I must step up my game it seems. To my recollection, I have never knocked on a stranger's door and offer to convert them to atheism. I have never promised to free anyone's mind and deliver logical thinking and scientific knowledge. I am a baaaad atheist.

Yes, he is a traitor.

I just saw that on Instagram....hilarious!!