I haven't read the article but I have a couple of ideas.
I think it's a childish desire to know that there is something in control of everything.
There may also be a strong element of narcissism. If you ever get into a conversation with conspiracy nuts they very quickly become abusive and arrogant. Their ego is fed by the delusion that they know better than everybody else.
My patience with conspiracy sorts is nil.
Holy Crap. I actually agreed with you for once.
Too bad you couldn't actually see those qualities in yourself.