the underlying, unspoken, theme here is that moreless (from the "ask moreless" forum) supports the refractometer, and since both vulcanel and corinthian have antipathy towards moreless they seek to disprove everything he asserts as true.
thats why there is the air of negativity.
but you have to evaluate information on its own merits, not on whether or not someone you dislike holds it to be true or not true.