It's been on my mind for a time but the thing that triggered this post is the closing of the question
as primarily opinion based by 5 members of the community.
Another instance of a user VTC as primary opinion based was to the question
This question was, however, not closed by the community at large.
A third instance of "we don't know" answer to a question was my favorite one so far because as it later turned out, there was in-fact canon answer if you just looked closer enough.
So, what should be done with current & future questions whose answered could potentially be "We don't know from the available canon so far"