Mormons make-up approximately 2% of the general population, even by their own inflated numbers.
They are certainly getting more than fair representation on FR, as are their opposition.
I think the FReeper fascination with Mormonism came when Mitt Romney was emerging as a strong candidate, it kind of tapered off and then the situation in Texas came along. If nothing else happens and if Mitt is not McCain’s running mate, it will go back to the way it was.