At time of writing this question, my Area 51 reputation is 222, while my Area 51 discussion reputation is 207. It has been this way for weeks.
I thought that Area 51 discussion was a meta site for Area 51, and therefore users should have the same amount of reputation on both of them. Has my Area 51 discussion account gotten out-of-sync with my Area 51 account? Or is there some other reason why my two accounts have a reputation that don't match?