Why do I consider it fair game to mock millenialists, when I would never openly mock anyone else’s religion? ($cientology is not a religion.) Because their beliefs are actively hazardous - I don’t care what happens to the world because I will be swept up in the Rapture, so screw you all - and, when examined closely (see quote in previous item) rather vindictive.
But we do try to keep to a cheerful tone here, so I present the link above, which shows the appropriate spirit of good humor in its mockery.
[Edit: That site’s Wordpress installation is not coping well with the page’s current popularity. It’s worth a few retries, though.]