stat boosts or spent in the "Mr. Store" to buy powerful items (including special monthly items). Mr. Accessories and Mr. Store items may be traded freely between players. According to an interview with Zack Johnson from 2010, Johnson originally established the Mr. Accessory revenue model as "kind of an afterthought", but it became lucrative enough to allow him to work on the game full-time and eventually to hire several permanent employees. CommunityKingdom of Loathing has been praised for its welcoming and active player community. One of the most unusual aspects of the community is the large number of female players: according to Johnson, approximately 40% of players are female. Fans often gather at both official conventions, run by Asymmetric, and unofficial player-organized meet-ups, including the annual KoLumbus event. Players support the game by writing scripts to perform various in-game functions, using Greasemonkey, Java, Perl, and Lua, and have also developed a player-run wiki which offers puzzle solutions and walkthroughs. Longtime player and nerdcore rapper MC Frontalot is active in the community and included a Kingdom of Loathing-themed song on his 2010 album Zero Day. Brett Bixler, founder of the Educational Gaming Commons at Pennsylvania State University, has hypothesized that the Kingdom of Loathing community is successful because it accounts for Richard Bartle's model of player personality types in massively multiplayer online roleplaying games, creating a balanced gameplay system that appeals to a wide variety of players. Researcher Martin Oliver addressed similar issues in a 2009 study of the Kingdom of Loathing player community, "Playing Roles in the MMORPG Kingdom of Loathing". A Web-based SHOUTcast radio station, Radio KoL, was the "official unofficial" radio station of KoL. It was a 24/7 DJ-hosted station, with volunteer DJs drawn from the KoL user base. As well as the player-hosted music shows, development team members hosted shows on Radio KoL in which they discussed the state of the game and answered questions from players. Radio KoL was shut down in late 2019. Reception Critical response for Kingdom of Loathing has been generally positive, with consistent praise for the game's humor and surrealism. The gameplay and content have been praised as "well designed" and having a "huge amount of content". Matt Gallant of Gizmodo said that the game is "actually very full-featured" with "a lot of content", and according to Worlds in Motion, "Kingdom of Loathing isn't just a great game, but a really unique