It's not at all interesting, but people keep asking, so here you go.
I was in college typing something, and I fatfingered the d in dan and
it came out dfan. I started using it as a username and stuff becuase
it was a handy way to disambiguate myself from all the other Dans in
Unfortunately, by the time I got around to registering a domain, some domain name squatter had taken dfan.com, but hey, I kinda like dfan.org. I have a whole organization at my beck and call! Watch yourself!