 Munroe is the creator of the now defunct websites "The Funniest", "The Cutest", and "The Fairest", each of which presents users with two options and asks them to choose one over the other.In January 2008, Munroe developed an open-source chat moderation script named "Robot9000".Originally developed to moderate one of Munroe's xkcd-related IRC channels, the software's algorithm attempts to prevent repetition in IRC channels by temporarily muting users who send messages that are identical to a message that has been sent to the channel before.