While we are on the subject. What about the comments tab.
I just got here last week, but the comments tab shows comments as they are posted on all threads (if I am not mistaken).
“Comments” seems to be every Reply Posted in order from most recent, second by second , regardless of the age of the topic.
The comments tab is It. Its where you want to be, to get in on discussions. You dont want the threads the second they are posted. I always choose comments as it lets you know where the discussions are.