What's the point of being open 24 hours a day, seven days a week, especially if you get zero calls between 3 am and 4 am?
Why take the risk of offering a no-questions-asked money-back guarantee when you know that a few people are going to show up with ridiculous requests for refunds?
Do you really want to offer an all-you-can-eat buffet? What about the trolls that eat too much? Shouldn't you have limits?
Simple. Because you've just eliminated a reason for people to wonder. They don't have to wonder about your rules or your hours or your fine print, because you took away the doubt.