It's interesting how people seek to rationalize their theories with increasingly complex pseudoscience.
The conspiracy theory itself tends to grow increasingly complex, until it ends up as a grand conspiracy that implicates everyone including other conspiracy theorists.
e.g. I've had one guy claim that chemtrails were produced by small military detachments. As our debate went on, he expanded his theory to include commercial airlines, the pilots, ground crews, engineers, everyone at the production facilities, the media, publishers, all levels of government and finally anyone that disagreed with him.
There's also a convoluted explanation of how the KC-10 video is not showing aerodynamic contrails, ignoring all actual science.
http://tankerenemy.blogspot.com/2010...rails-and.html
Further to my point, Tankerenemy begins implicating ever more people in the conspiracy:
"...You-Tube USAFFEKC1O appears now in effect under the control of Italian hoaxers.
This says a lot about the role of deniers, as part of the cover-up about chemtrails and co-operation of ItalianYou-Tube staff in this misinformation."
So according to Tankerenemy, the Italian YouTube staff and anonymous hoaxers are now also part of the chemtrail conspiracy. Priceless!
Anyway, here are some other chemtrail theories that deserve honorable mention...