Title says it all. I find it rather lame to have to click each notification about a replied message so that the notifications becomes read, when I've already read the message in itself.
I know I made it about conversations, but the same could be said about any type of notifcation. For example, I sometimes have 4-5 notifications for one topic, I access that topic and view all that is inside it, yet I have to click on all notifications for them to be read(likes for example)