You people have a very juvenile grasp of the scientific method, we dismiss the claims of the religious, 9/11 'truthers', etc , because such claims are unfalsifiable. There is no conceivable piece of evidence that is capable of exploding their hypothesis, it is impossible to prove them wrong. I mean of course we can, say, present a moon rock to a NASA conspricist, but they will just adjust their claim or outright deny the validity of the rock.
What's important is that the opinions of these people do not matter, claims that cannot be falsified are to be discarded into what Popper called the 'meta-physic' category.
Likewise religious folk are immediately disqualified from the discussion, these types are not interested in validity, when discussing questions about the universe/morality/etc they are to be marginalized (preferably into a sound-proof room), they are not to be 'debated' (as if their was a debate to be had) and their 'opinion' is not to be 'respected'.