I just followed one of my own (bad, includes a /Pictures/ that doesn't belong) links, and I got this:
You should handle that gracefully. Twits will typo, malicious users will do it on purpose.
Bad things happen with broken urls.
- Reply by gr, Jun 5, 2007.
Heh. Or maybe I was just poking around right when you were putting up the "Home" section, which is exactly what you display for bad urls.
Oops. Sorry. (I can't replicate this any more, of course.)
- Reply by Mark Angelillo, Jun 5, 2007.
You just needed a new version of the stylesheet. Yes, this has been fixed.