I've noticed that when I reply to a thread, anytime a new reply is made to that thread I get the notification. Then when I click on that notification it takes me directly to the new comment. But only if the comment is on page 1. If the thread goes beyond page 1, when I click on the notification it will take me to the beginning of the thread and not to the new message. I would then of course click on page 2 or 3 and advance myself to see the new comment.
