A:I don't know why anyone would want to be exposed in such a way. If someone has a secret he doesn't want to share he should be prepared to deal with it on the show because the dirty loundry will come out one way or the other.
Celebrities probably won't want to take part because they usually have enough money to start with and they lack privacy. This show gives money and takes your privacy away so they don't have any reason to play along.
