It would be very helpful if there could be a 'context' button added to the notifications area, when the notification is concerning a reply to a comment you made. Could also be useful for notifications about a comment left on one of your posts, if the post accumulates a lot of comments, making it cumbersome to go to permalink -> search for comment on post.

It would be nice if it were an option listed near where 'permalink' is, that would take you to that comment reply in that thread and possibly show one or two comments above it in the reply hierarchy.