You will never find a railroad book on the "New York Times" best seller lists. There is not enough money in selling a railroad book to hire a good fact checker and editor. When you have a press run well under 10,000 books there is no money to print a corrected second edition.

I can understand why the publisher blows away people who have corrections. No good way of distributing corrections exists. Perhaps a web site could be created for publishing corrections but it would need a full time fact checker. As demonstrated very clearly here many of the "corrections" are also wrong. The late George Hilton did include corrections in later editions of his books but they were published by a university press that has a commitment to accuracy.

So the publisher is at the mercy of those who submit the book.