Wikipedians. They're the people who actually write that free online encyclopedia you use every day. But who are they?
Wikipedia isn't written by the staff of a company or paid experts. It's written by thousands of unpaid volunteers.
Though anyone and everyone can make an edit to the site, there's an elite (read: obsessed) cadre of people who regularly give up their free time to write an encyclopedia. If you thought 4chan was weird, wait till you meet the Wikipedians.