Those are surprisingly strong words, coming from someone who meekly bowed out of the thread that John Mytton started on the subject.
Mytton is a total quack who is immune to reason and persuasion. I have devoted countless replies to answering his nonsense, and after a while I stop responding because in his threads because I know I'm wasting my time.
You might want to check out my ongoing exchanges with Mytton in my thread about his blunders on the backyard rifle photos, in which, among other things, he claims that the differences in the background distances are "very visible" to the naked eye--yeah, never mind that the HSCA PEP could only detect them with computer-aided, high-magnification/microscope-aided photogrammetric measurements. As you'll see in the thread, I've asked him repeatedly to address this fact and to acknowledge his error, but he has gone silent on the issue, as he usually does when he's caught in a bald-faced blunder.
In one of his threads on the backyard photos, he actually said that once you adjust the PEP's parallax measurements for scale, they prove there is "massive parallax" in the photos, not realizing that the PEP's parallax measurements were already adjusted for scale. I responded by pointing out that the PEP's measurements were adjusted for the scaling distances to account for magnification differences, that this is plainly stated in the PEP's report, and that the scaling distances are even mentioned by name and given in the calculations. He has yet to acknowledge his blunder, as usual.