References a web site and says " (Site is now defunct and cannot be accessed.)". And indeed, no copies in any of the usual archives. And why? The internet archive says This URL has been excluded from the Wayback Machine.
I.O.W., the domain has been taken over by somebody else, and the Wayback machine has retro-actively decided to censor the information.
Fah.
That’s just what they want you to think.
works fine for me …
That was one decision I did not like. The archive decided that, if anyone ever puts up a robots.txt that forbids archiving, then all archives up until that point are also removed, without regard to who owned what.
It should have at most covered a certain period of time, with a requirement to specifically request removal for more than that.
Whoever buys straightdope.com when the site disappears should not be able to erase the archive.
And yet someone will, simply for the hell of it 
It’s a “robots.txt” issue and was probably put in place after a DOS attack.