It's because the aliens on the moon aren't Christian
Smash from these news sources
No personal information required.
You don't need an account to use the generator or browse around, but if you make one you can:
We tried to do it without accounts for a while, but a few people kept cheating and hacking and being rude.
It's completely free and we don't ask for any personal information so we can't spam you.
io9
Business Insider
It's because the aliens on the moon aren't Christian