Gwern Branwen - Footnote 4

Note: The claim states Gwern has been active on English Wikipedia since January 2004. The source says 'I have been active on the English Wikipedia and related projects since January 2004 22ya'. The '22ya' implies the source was written in 2026, not the current year. The claim states Gwern has over 90,000 edits. The source says 'Cumulatively, I have over 90,000 edits'. The claim states Gwern maintains a website featuring essays on psychology, statistics, genetics, and rationality. The source says the website features essays on Haskell, personal, psychology, survey. The claim states Gwern is a prominent figure in rationalist and LessWrong communities. The source mentions LessWrong.com as a social news and discussion website where Gwern submits posts and comments, but does not explicitly state that Gwern is a prominent figure in rationalist and LessWrong communities.