I am not saying that I agree with him, personally I think he is an idiot. Both Brainster and I are actually mentioned in a book coming out about bloggers for some posts we did on him. Just a little shameless self promotion.
Yep, oddly enough on the famous "stolen" election of 2004.
In a lot of ways, I feel like I'm paying the price now for my youthful belief in conspiracies. I was born in 1955, so the defining event for me was the Kennedy assassination, and I believed in the conspiracy. Not so much that it became an obsession, but I could rattle off the problems with the magic bullet and connect the dots ("Gerald Ford was on the Warren Commission, and now he's being effectively appointed to the presidency!"), all that sort of nonsense. To give myself a little credit, I did follow the Jim Garrison case and realized pretty quickly that he was a complete bozo.
Like Jim Fetzer, watching JFK changed me completely, but in the opposite way. I was flabbergasted watching Stone try to make a martyr out of nutbar Garrison and walked out of the theatre about halfway through. After that I noticed that no "factoid" was ever refuted permanently; the CTers would retire it for a couple years and then resurrect it a few years later when the evidence defeating it was largely forgotten.
I can buy that a heck of a lot of CTers started out as 2000 Sore Loserman types, although obviously that doesn't explain Morgan Reynolds or (apparently) Stephen Jones. As I've said many times, most CTers start with the conclusion (Bush/Cheney was responsible for 9-11) and work backwards from there. Obviously those who opposed Bush in 2000 would be prone to reaching the conclusion quickest.
There are paranoid types on both sides, on the far wings who start the ball rolling on the theories against the other side, and that at some point the "evidence" they've gathered becomes compelling enough that some of the paranoid types on the other side hop on board (although disputes develop as to who was "really responsible"). Remember, CT evidence is similar on both sides; it relies on quote mining, focusing on the eyewitnesses whose account disputes the OT, and "connecting the dots". I would imagine that just as there are "conservatives" among the "Truthers" there were probably some "liberals" muttering about Vincent Foster.