The reason why

Michael Moynihan points out the obvious when discussing the latest round of conspiracist nonsense:

In the mid-1990s, during the infancy of the World Wide Web, a visit to my local university library demonstrated that the Internet would be both a great tool of liberation and a megaphone for the fantastically mad. That small bank of Internet-connected computer terminals was reliably occupied by a few student researchers and an army of honking, snorting, flaky-skinned cranks, furiously posting to Internet bulletin boards.

Then there are others who just like pictures of cats.