While I'm (sort of) on the subject of that old journal entry about author gender and prolificness, perhaps an update is in order.
At the time, I mentioned that only one of the sixteen most prolific submitters to SH was female. That's changed: currently, six of the sixteen authors who've sent us 25 or more stories are female. (I think in both cases I picked the number 16 because there was a tie for 15th.)
I'm not gonna even attempt to speculate on causes at this point. But I thought it was an interesting change.