Personnel: Eliezer Yudkowsky at The Sequences by Eliezer Yudkowsky (Author)

NoteThe source confirms all key fields in the record: (1) person: Eliezer Yudkowsky is identified as the author; (2) org: The work is called 'Rationality: A-Z' and 'The Sequences'; (3) role: Yudkowsky is explicitly identified as the author of the blog posts; (4) startDate and endDate: The source states posts were 'published to Less Wrong and Overcoming Bias between 2006 and 2009', which matches the claimed 2006-2009 date range. The record's organization name 'The Sequences by Eliezer Yudkowsky' is a reasonable representation of the source material, though the source uses the primary title 'Rationality: A-Z' with 'The Sequences' as an alternate name.