But give that man a Web site template, or let him produce some slick videos on YouTube and, lo and behold, he may have thousands of people across the world supporting him.
Such is the story of several extraordinarily popular conspiracy theorists and theories online today.
Take the victims of gang stalking — a subculture of people who think their friends and neighbors are all secret government spies ready to turn them over to the authorities. The movement has recently spawned gang stalking support groups, forums and advice Web sites.
Or take the former journalist and BBC sports announcer, David Icke, for example.
Icke was laughed out of the public eye in the early '90s when he started wearing only turquoise and explaining that voices had sent him on an important mission to save the earth.
Decades later, Icke has written books, has fans in 47 countries and can gather a crowd of 2,500 people in a city simply by posting a date for a lecture on his Web site.