We have discussed this before, how religious beliefs and practices include so many strange things as normal that mental illness can safely hide behind most religions. There is a fine (non-existent?) line between extreme religiosity and moderate nuttiness.
The exact same behavior that would get someone locked up is accepted if done in a religious context. Cut off your foreskin to honor Mr. Spock? Crazy. Cut off your foreskin to honor god? Fine. Have your girlfriend whip you bloody? Crazy. Have people whip you bloody for Muslim Ashura or during the Easter reenactment of the crucifixion in the Philippines? Acceptable.
Make your kids walk the streets in the cold for hours going door to door warning strangers about the impending zombie apocalypse? That's cruel and perverse. Call child protective services. Unless you put religious literature in your kids' hands. Then the same people will admire how devout those little ones are in their love for Jesus.
Some famous atheist commented that when George Bush said that god told him to invade Iraq, most people in the US thought that was an okay statement, even if they disagreed with the policy. If Bush had said that his dog, his hair dryer or his shoes had told him to invade Iraq, most people would have thought he should be removed from the presidency.
And we might not have invaded Iraq!