"If human pranksters made the formation... they would have to average one circle every 2 minutes and 20 seconds - to say nothing of laying out the whole design and executing it flawlessly. If people made it, they should be running the government, things would get done quickly and done right, for a change!"Peter Sorensen writing about the DNA crop circle in: Amateur Astronomy Aug/Sep 96
I'm sure there are guys who would love to take credit for this. Algore maybe?
Read the whole site. They lay out their methodology quite well.
Heck, they've even figured out how to make money doing it!