File this one under “what were they thinking?”
After applying a July 2013 security update for Lync 2013 (MS13-054), the notification area icon was changed. It used to show your current status (available, busy, etc) but now it only shows the Lync icon itself. You now have to hover over the icon to see your current status.
Microsoft has made some good decisions lately but this isn’t one of them. 🙂