People who had bought extra userpics were being notified of their upcoming expiration every 5 minutes, instead of just once.
whitaker rushed a fix live.
(We somehow missed this during testing of the extra userpic feature which is pretty new... :-/)
Sorry if you were spammed by this. We would've got to it sooner, but we were all away doing the holiday thing.
Anyway, hope everybody enjoys the holidays and new year, LJ spam aside. :-)