Eric S. Raymond

In 2015 Raymond accused the Ada Initiative and other women in tech groups of attempting to entrap male open source leaders and accuse them of rape, saying "Try to avoid even being alone, ever, because there is a chance that a 'women in tech' advocacy group is going to try to collect your scalp."

In a 2008 essay he "defended the right of programmers to issue work under proprietary licenses because I think that if a programmer wants to write a program and sell it, it's neither my business nor anyone else's but his customer's what the terms of sale are". In the same essay he also said that the "logic of the system" puts developers into "dysfunctional roles", with bad code the result.

In 2000–2002 he created Configuration Menu Language 2 (CML2), a source code configuration system; while originally intended for the Linux operating system, it was rejected by kernel developers. Raymond attributed this rejection to "kernel list politics". Linus Torvalds on the other hand said in a 2007 mailing list post that as a matter of policy, the development team preferred more incremental changes. His 2003 book The Art of Unix Programming discusses user tools for programming and other tasks.

In 1996 Raymond took over development of the open-source email software "popclient", renaming it to Fetchmail. Soon after this experience, in 1997, he wrote the essay "The Cathedral and the Bazaar", detailing his thoughts on open-source software development and why it should be done as openly as possible (the "bazaar" approach). The essay was based in part on his experience in developing Fetchmail. He first presented his thesis at the annual Linux Kongress on May 27, 1997. He later expanded the essay into a book, The Cathedral and the Bazaar: Musings on Linux and Open Source by an Accidental Revolutionary, in 1999. The essay has been widely cited. The internal white paper by Frank Hecker that led to the release of the Mozilla (then Netscape) source code in 1998 cited The Cathedral and the Bazaar as "independent validation" of ideas proposed by Eric Hahn and Jamie Zawinski. Hahn would later describe the 1999 book as "clearly influential".

From the late 1990s onward, due in part to the popularity of his essay, Raymond became a prominent voice in the open source movement. He co-founded the Open Source Initiative in 1998, taking on the self-appointed role of ambassador of open source to the press, business and public. He remains active in OSI, and stepped down as president of the initiative in February 2005. In 1998 Raymond received and published a Microsoft document expressing worry about the quality of rival open-source software. Raymond named this document, together with others subsequently leaked, "the Halloween Documents".

Raymond began his programming career writing proprietary software, between 1980 and 1985. In 1990, noting that the Jargon File had not been maintained since about 1983, he adopted it; he currently has a third edition in print. Paul Dourish maintains an archived original version of the Jargon File, because, he says, Raymond's updates "essentially destroyed what held it together."

Raymond has claimed that "Gays experimented with unfettered promiscuity in the 1970s and got AIDS as a consequence", and that "Police who react to a random black male behaving suspiciously who might be in the critical age range as though he is an near-imminent lethal threat, are being rational, not racist." Progressive campaign The Great Slate was successful in raising funds for candidates in part by asking for contributions from tech workers in return for not posting similar quotes by Raymond. Matasano Security employee and Great Slate fundraiser Thomas Ptacek said, "I’ve been torturing Twitter with lurid Eric S. Raymond quotes for years. Every time I do, 20 people beg me to stop." It is estimated that as of March 2018 over $30,000 has been raised in this way.

Eric Steven Raymond (born December 4, 1957), often referred to as ESR, is an American software developer, open-source software advocate, and author of the 1997 essay and 1999 book The Cathedral and the Bazaar. He wrote a guidebook for the Roguelike game NetHack. In the 1990s, he edited and updated the Jargon File, currently in print as The New Hacker's Dictionary.

Raymond was born in Boston, Massachusetts, in 1957 and lived in Venezuela as a child. His family moved to Pennsylvania in 1971. He developed cerebral palsy at birth; his weakened physical condition motivated him to go into computing.