On Monday, Fil made a note on Facebook listing the ~10 people he knew who had left MS this year. After a couple days and a few additions from friends, it was up to 16.
Earlier today I stumbled upon Rory's announcement.
Then I discovered Danny's post.
Maybe it's just that time of year.
Maybe it's that departures are more visible these days.
To use Microsoft's favorite overloaded statement: interesting.