That's actually standard practice among some antiCatholics. Most of the groups claim to have "former priests" on staff, whom they quote as sources for their distortions. When one objects that it is impossible for even the most poorly educated of priests to believe what they publish, they reply that there is really a secret conspiracy to keep the "real" (i.e., demonic) Catholic teachings from the laity, and that any published documents are merely for public consumption. What "really" goes on in the Vatican is known only to a select few, among whom is the "priest" they have on a leash, so to speak.
It's standard conspiracy-theory kookery, of course, but that's an inherent part of antiCatholic bigotry. You may recall the rumors these people were propagating around JFK's candidacy (and Al Smith's, but he was before my time) that the Pope would push a button, and the secret Vatican decoder-rings which all Catholics receive at their antiBiblical confirmation would glow Marian blue, the signal to mobilize an army to subvert the sovereignty of the United States.
Some of this stuff can be partially penetrated by asking one's interlocutor to submit to a little quiz. I usually ask one who expresses outrage at an out-of-context passage from the Catechism how many Biblical citations, roughly, say order of magnitude, are to be found in that document. They're never anywhere close to a correct answer, because they don't actually read the full 700 pages or so; instead they get passages exerpted and distorted through the lens of one bigoted organization or another.
It helps to know a bit about the tactics you're up against.