The short answer is that most conspiracy theories are worthy of contempt. They sound crazy because they are crazy.
Exhibit A among the protagonists of crazy conspiracy theories is David Icke. Loony tunes does not begin to describe his theories. I can do no better than to quote Wikipedia:
At the heart of his [Icke’s] theories lies the idea that a secret group of reptilian humanoids called the Babylonian Brotherhood (including George W. Bush, Queen Elizabeth II, Kris Kristofferson and Boxcar Willie) controls humanity, and that many prominent figures are reptilian. He further proposes that the Moon is an artificial construct — “probably a hollowed-out planetoid” — from which the reptilians broadcast an “artificial sense of self and the world” that humans mistakenly perceive as reality. 
You may think that anyone propounding the theory that George Bush was a shape shifting lizard and aliens were influencing our sense of reality by broadcasting mysterious rays from the moon would be dismissed as a crank. You would be wrong. Icke has a strong following. His meetings and lectures are sold out. His books have sold over a hundred thousand copies and he sells his DVDs at £30 (about $45) a pop.
In short David Icke, who once claimed to be the son of God, makes a good living out of propounding crazy theories to his groupies. I suspect it’s not all a performance, that he truly believes Queen Elizabeth is a shape shifting lizard and that the moon is a hollowed out alien-inhabited planetoid.
For those of us living in the real world this is all preposterous nonsense. While David Icke may be an extreme example many of the people propounding conspiracy theories come across as more than a little bit crazy. And here we come to the nub of my problem. People like David Icke and the slightly less insane-sounding Alex Jones poison the well. They make it hard for reasonable people take any talk of a Grand Conspiracy seriously
Let me set your mind at rest. I am not going to talk about shape-shifting lizards and aliens on the moon like David Icke. Nor am I a gun nut who thinks everyone should be carrying assault rifles like Alex Jones.
What you’re going to get here is a sober recounting of the facts as came to learn them over the past four years. Wherever possible I shall give clickable references.
 Wikipedia extracted 11 July 2015.
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