I want to know if some impossible-to evidence notions are more worthy of consideration than others and if so on what basis.
Werewolves. On the basis that the moon is full and the moors foggy. You may scoff and take your little walk through the moors, but dont come crying to me if you get your throat ripped out.
It is impossible to evidence if some asshole thinks he is a werewolf is really a supernatural werewolf. He may simply be a lunatic with a penchant for murder. Does it your skepticism make a difference if you are his next victim? On that basis I contend lycanthropy to be more worthy of consideration than say the Easter bunny, who at best would pummel you with eggs.
"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs