Of course. This entire forum is based on that premise. It's one reason why mothers around the world won't let people discuss politics or religion at the dinner table; because it is so open to a wide variety of opinions.
Actually the forum is slightly different, it is about helping learn about philosophy and theology, for that we endeavor to present our positions and arguments to support those opinions; especially in DEBATES this is supposed to occur in a rational manner to emphasize the soundness of our premises and reasoning, to address counter arguments and in doing so educate (hence 'Religious Education Forum') both ourselves and those around us.
To take a 'leap of faith' might be reasonable within a discussion of belief, particularly of those who hold similar beliefs; however in a debate, which is a (at least semi structured) rational exchange of information taking a leap of faith is to
fail to provide the reasoning, it is merely something that weakens your argument to such an extent that no one who does not already agree with that position would consider it might be correct. Alternatively, if you had actually provided such reasoning, perhaps you might have the possibility of swaying other people.