In your opinion, what is the most ridiculous religion known to humankind?

There are a number of equally silly ones. Scientology. The folks who believed a space ship was coming to pick them up. The Manson family's religion (Beatle worship) would have been silly if it hadn't killed so many people. Rastafarianism. I'd say Pastafarianism except that that one was intended to be silly, as a parody of all the others.