The website / book is a really good resource about typography, something worth supporting IMO.
Edit: The site apparently redirects traffic from hacker news to a call for donations. Not cool, especially since people think the posted and upvoted article is this one, and not the intended one.
Mods, @dang, can we maybe replace the link with one through an anonymous redirector? Or add "(copy/paste link!)" to the title? Or just let people flag it...
I think hacker news should have a blacklist, where for certain sites they use an anonymizing redirector, and/or a warning (JWZ's infamous redirection comes to mind).
This honor system stuff won't work.
If you want to sell your book, sell it. If it's worth the price, people will buy it.
I just paid $25 for a book sight unseen, based only on reviews. I do that often.