1 - Charlie is out to lunch on this.
2 - Take it easy on Free4Life...I think he or she (sorry) may have merely misspoke. Lots of people enjoy looking into conspiracy theory about everything from JFK through, yes, 9/11. Different people cope with things in different ways, and I think F4L is taking a bit of a beating here for simply saying that the theories were interesting, not for saying "I enjoy things to do with 9/11". I know people that enjoy researching the holocaust...does that make them horrible people, simply because they draw enjoyment out of a horrendous act?
3 - Secrecy breeds paranoia, and paranoia leads directly to conspiracy theories. We are currently living under the most secretive administration in recent history. It should come as no surprise that people are looking for answers when the government is doing everything they can to hide what information it can (ie: the confiscation of the security tapes mentioned earlier). Yes, I think the conspiracy theories are off on this one, but I can understand where the genesis of them lies, and it is with the government itself.