On main page
Badges indicates that for Mortarboard 261 have been awarded:
On meta the number is shown as 2:
What do these numbers signify, if anything - in particular the
2 for meta - given the badge is for:
Earn at least 200 reputation (the daily maximum) in a single day
and on meta rep is the same as on main (supposedly).
I think Meta participation vs main reputation and associated badges may be related to the above, but it too shows no answer.
Perhaps meta should not display badges that can no longer be achieved on meta. (ie leave the
2 as is but for meta don't display the 'Mortarboard' row at all.)