Evaluating Truth Claims

People make claims all the time, some more extraordinary than others. The claim I has a baseball is not an extraordinary claim given the number of baseballs produced and the popularity of the game in various places of the world. Curing cancer with baking soda is a significantly more extraordinary claim and typically provokes skepticism.

I'm sure that someone who feel hopeful about treating their cancer with baking soda might actually experience a remission since we don't fully understand how cancer works. But does that mean that the baking soda is responsible for the remission, or is there something else at work that is completely unrelated to the asserted cause?

So my question is why should I not be skeptical of your claims? Why should your claims about gods and reality be treated as an exception, exempt from skepticism or suspicion? Why should I not approach it with the same attitude that I approach claims of baking soda or crystal therapy cures for cancer?