Unfortunately, very true. Judging by some posts, they either didn't bother to read the post (let alone links / references) or it went right over their heads...
... Or, what's even worse, they are just so comfortable with "what they 'know' they know" that they are unwilling to open their eyes or their minds to anything that might prove uncomfortably different - it might turn out that they were wrong in their opinions or conclusions based on having the wrong information... and they would rather not have to deal with that.
"It ain't what you don't know that gets you into trouble; it's what you know that just ain't so" - Mark Twain
"Beware of false knowledge; it is more dangerous than ignorance" - George Bernard Shaw
Much goes right over the heads of a number of the folks who chimed in on this one....so so so much.