Conspirabators
People who seem to be aroused by promoting conspiracy theories about controversial public events. They are often found on obscure internet forums, or in bars or parties, where they spew implausible scenaria explaining historical events. The data that they provide is usually cherry-picked or flawed, and they are adamant about the veracity of their cause. Examples include, 9/11, the JFK assassination, Obama birthers, vaccination autism warners, etc.
I saw a guy on a date, and all I heard from him was about how the World Trade Center was brought down by explosives. I couldn't tell if the girl was impressed. I almost went over to him to bitch-slap him. I wish I did. He was just one of those conspirabators.