There have been a couple of times today when HTF seems to have dropped completely off the internet. A while ago there was something like a 20-minute period when I couldn't get any page to load, and oddly, I was getting no 404s or time-out messages, just the eternally spinning browser thingy...
Agree, it's a very useful feature -- which I was always using -- especially valuable when you've got a lot of threads to catch up on and need to prioritize.
And for those who recognize the avatar and first name, I am the person formerly known as Chas in CT. Got tired of that long ago, and took the opportunity to change it.