It is a useful view on which threads currently have active discussion. That's nice b/c if you're the last person to comment on the thread, you get to voice your

It is a useful view on which threads currently have active discussion. That's nice b/c if you're the last person to comment on the thread, you get to voice your opinion but that's about it. You want to participate on active threads. Also, sometimes I load the "comment" page, and scroll down to the area where the comments are 30-60 minutes old. Generally anything that's gotten voted up at all is pretty interesting, so the insight efficiency ratio is pretty high. I picked up that second habit from something similar that I think a lot of people do on the "new" page: if a submission is 40 minutes old, giving it it's fourth vote can make a real difference to the arc of the submission, in terms of how much attention it gets.