I'm not complaining, but I think the Mortarboard badge is broken. I hit the rep cap yesterday and the day before, but didn't get the badge either time.
Is something busted or am I just being harebrained?
Hmm, I'm showing that you already have the badge, earned March 4, 2015. Mortarboard, along with its successors, Epic and Legendary, are single-award badges.
To see your progress towards Epic and Legendary, you can track them in your user profile!
Also, nice answer about events :)