I personally wouldn’t want badges or other such rewards beyond what we already get. Maybe someone would.
Something that would help with identifying would be to improve the notifications page, so I could more efficiently deal with it. Especially, I would like a way to “dismiss” notifications I’ve seen. (As it is, I have to complete a whole set of notifications at one time or page through dozens or hundreds of notifications to get where I left off.) By this I mean a way to dismiss notifications right there beside the notification, not something I’d have to scroll though that drop-down about notification numbers to deal with. Not something I’d have to open the observation to deal with.