I noticed that when threads are split or merged, the notification isn’t that helpful, especially in the former case. When the back/scroll debate got pulled out of the like experiment thread, the notification I saw was ‘wumpus has moved The Great Like Experiment 2017’, which is a little misleading. That thread didn’t move, but my post inside of it did. I never actually found the new thread, because I interact with Qt3 primarily through the notification panel, plus New and Unread.
It would be nice if splitting a thread sent a notification along the lines of, “so-and-so moved your post to New Thread Name and Link”, so that the destination is accessible through the notification.
Edit: also, if I reply to a thread and immediately go to the Unread view, sometimes my own post shows up as unread. As a practical matter, I can’t think of any time where ‘your post in a thread is posted, but you haven’t seen it yet’ is useful information.