I ran across the following question on main:
On one hand, the question is formally a skeptical question, on the other how can one prove that Hitler was a Christian or an Atheist?
He did write that he was a Christian - however his actions were certainly contrary to the Christian religion. Both are conflicting evidence and thus, probably, not very useful evidence.
As such I suppose that that question to be closed as off topic or subjective and argumentative:
Skeptics - Stack Exchange is for skeptics, rationalists, free thinkers, or anyone who questions pseudoscience. Skeptics is about applying skepticism — it's for researching the evidence behind the claims you hear or read. It is not for philosophical discussions about skepticism itself.
Should we allow questions that don't have a reasonable way of investigating the claim?