|Original author(s)||Randall Munroe|
|Initial release||January 14, 2008|
|Platform||Internet Relay Chat|
|License||GNU General Public License|
Robot9000 (r9k) is an open-source chat moderation script developed in 2008 by Randall Munroe. Originally developed to moderate one of Munroe's xkcd-related IRC channels, the software's algorithm has since been adapted to work with other services.
Robot9000 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. If users continue to send unoriginal messages, Robot9000 mutes the user for a longer period of time, quadrupling for each unoriginal message the user sends to the channel.
- Shortly after Munroe's blog post about the script went live, 4chan administrator moot adapted the script to moderate the site's experimental /r9k/ board.
- Twitch.tv offers Robot9000 ("r9k mode") as an optional feature for broadcasters and moderators to use in their channels' chat boxes.
- ROBOT9000 and #xkcd-signal: Attacking Noise in Chat
- Petersen, Kierran (October 2, 2015). "A short history of /r9k/ — the 4chan message board some believe may be connected to the Oregon shooting". Public Radio International. Retrieved May 18, 2018.
Surprisingly enough, however, the /r9k/ board, otherwise known as ROBOT9001, was originally conceived as a way to increase the quality of messages on the wildly popular webcomic xkcd. It used a type of auto-moderation that prevented people from posting the same comment multiple times. [...] 4chan eventually moved the idea and software behind ROBOT9000 on to its site. They just added a one.
- Twitch.tv: Chat Commands § Basic Commands for Broadcasters & All Moderators
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