Why are people interested in conspiracy theories?

My hope is to frame this question, such that there is no bias one way or the other.

I want to know what moves controversial, unresolved conspiracy conversations forward?

That is, why do some people give thought to plausible theories-those having credible evidence-especially when they fail the logical fallacy test (such as the highly controversial 9-11 and global warming issues) and other people aggressively avoid those issues entirely?

here’s some appetizers to start with:

http://warp.povusers.org/grrr/conspiracytheories.html

http://uplink.space.com/showflat.php?Cat=&Board=phenomena&Number=534551&page=15&view=collapsed&sb=5&o=0&fpart=

When answering, please, no references to David Icke, Michael Tsarion or ‘Reptoids’ or anything with ‘Tesla’/UFO/Maya connections. Interesting though they may be, I’m interested in plausible theories and rational thinking, not grand assumptions or make-em-ups.

I dunno, I myself am always interested in conspiracy theories, my conclusion: we as a race are always trying to search for meaning. I’m only 14 so I guess I don’t know very much about the world as of yet, but I’m always looking for different solutions to problems, explain the unexplainable, right? Maybe that’s why, no matter how obvious the facts are we just keep asking questions, just like you did