It actually surprise (and annoys) me that the notifications still give you updates about people mentioning you in comments and replying to your comments on videos. How has no-one internally in this group realized this feather is completely useless when clicking on it these notifications doesn't actually show you the comment? It just takes you to the content where you comment/reply/mention is on, and then it's good luck to you the user to scroll down and find it. On hot new content this is completely unrealistic.
Either make the browser scroll you down to the related comment/reply/mention, or make a section atop the comment section meant to make a duplicate view of the related comment/reply/mention when navigating to the page through such a notification.