That hurts a bit to read. Raymond is/was a huckster who took the original Hackers Dictionary, a communal MIT project, and made some edits. He went on to annoy the Linux community with his CML2 antics around the build system. Lisp/MIT, BSD, and Linux all have their own histories, a mixture of forgettable drama and fundamental difference.
The Jargon File had been dead and dated for nearly a decade when he picked it up. His maintenance and publication was an important part of making this content relevant and accessible to future generations.
Eric Raymond's work is a mix of good and bad-- like you could say about anyone.
As a guy who found the Jargon File via that book, I'm grateful he did it. But I can see how publishing an edit of an online forum would ruffle a lot of feathers: 30 years later you get guys like me attributing it all to him.
Most of the criticism of his stewardship of the jargon file and the publication as N.H.D. by MIT Press comes after other controversies.