I've got plenty of concerns about copyright memory holing good work. The Jaynes' publishers squawked, so the original site took down the whole book, including parts of the book that weren't even published.

What a bunch of shmucks. Jaynes book wouldn't be selling if not for the readers of the draft.

Way back, when the internet was a playground for grad students, besides downloading Jaynes I was also busily publishing obscure philosophical works. Hate me some copyright law.