I just experienced a 208 points drop in rep. Maybe that's due to a rep recalc, but then I'd really like to see that in my recent activity, which shows no clue as to what happened. How do I find out exactly what happened?
(I already did a manual recalc, which did not change my rep.)
Edit: user ire_and_curses posted a feature request concerning notifications when a rep recalc happens. I call on everyone who complained here to support that.