Oh yeah, I forgot about that. Thanks for the link!
Haha, so this is what happened? I had a big WTF moment.
Apparently the author of jwz.org doesn't like HN. This is him, by the way:
https://web.archive.org/web/20170125134508/http://sleepmode....
http://nullrefer.com/?https://www.jwz.org/doc/cadt.html