Continuing the discussion from Possibility to selectively (or completely) mark notifications as read:
As far as I can tell it is still the case that badge notifications do not show up as read despite the declared irritation with that state two years ago.
I just received twenty notifications for earning ‘Nice Share’ on another forum. Clearing all twenty notifications was a painful task. Maybe I should have left the notifications uncleared but once I had started I decided to finish. I also noticed that the only notifications that I have never cleared were all badge notifications - they’re all cleared now.