We have found the reason to be cult-related in many cases. It's like a religion to them. Their One JPM is a saint and hero -- or dare I say a GOD -- and the story cannot be changed, no matter the truth of it all. That is not to say ALL PID-ers are this way. Some do want the truth, but cannot see it yet, and some go with "group think", the majority rules.
You must have found my thread at PID when I was first researching "Paul Is Dead". While in the process of looking at before and after pics, I began to see differences all the way back to at least 1963. That's when I began my own website and forum, as the PID people were mostly not very receptive of my research. We eventually began to find differences from the very beginning, and cannot figure out how anyone can tell who the "real JPM" ever was or is. No one at PID can agree on the identifying criteria.
See this thread, too, for our take on why PID or PIA.viewtopic.php?f=13&t=205
Thanks for joining, and we're so happy to have you here!