I’ve already emailed TubaDiva a day ago, but just in case the email didn’t get through (Hotmail was a bit flakey) – there’s a broken link to one of the threadspotting threads in the archive on the main site. This:
goes just to this “Not found” message. A fairly recent thread too, by the looks.
Only found it one night when I was a bit at a loose end and was flicking through the list. I don’t know if there are any others like that.
I see the problem. This is what shows up in my address bar when I click on the link: http://www.straightdope.com/columns/boards.straightdope.com/sdmb/showthread.php?t=361028
when it should be http://boards.straightdope.com/sdmb/showthread.php?t=361028
Yup, that’s what I figured. Typo, or copy/paste error, maybe.
Gremlins, I tell you! Gremlins!
TubaDiva
Yeah, the little beggers get in everywhere. 
Just don’t get them wet or feed them after midnight.