This question was fueled by the following question being put on hold: Reason for magical abilities. However, my meta question below applies to the pob close vote reason in general and I do not wish to start a discussion on the linked question in any way.
So I'm mostly active in the scientific stacks and I'm new here, but still I would like to dare asking the reasoning behind close-votes based on pob on a non-scientific stack:
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.
It seems that only those questions with a science-based tag could be closed as such? Since this is a world-building forum with magic, sci-fi, portable MRI scanners. bipedal insects and horse-less worlds (to name just a few subjects) - how would one justify pob close-votes here?