Kant famously has a section somewhere where he talks about the illusions of metaphysics.
I read that he thought he proved various metaphysical contraries, which he called antinomies, with totally valid arguments.
And then went on to say that it if it was possible to produce valid arguments for contrary points of view then there must be something wrong with the subject...
~but, myself, I think so far in this thread, metaphysics is fairly loosely defined.
I think that the question of whether or not the universe is conscious, or purposeful, or non-conscious and purposeless, is of profound pragmatic importance to us as individuals with individual purposes,
If that's a metaphysical question, then some metaphysical questions are of profound pragmatic importance.
I think that's obvious enough to be stated without argument, but, if anyone wants an argument for it, - I expect I can produce one, when I'm next here.