One of the reasons we were particularly enthused about the new, revamped Analytics dashboard was the ability to add new analytic options quickly and easily.
Here is one such analytic! (Is 'analytic' really the singular of 'analytics'? We think so.) You now can aggregate the reasons folks unsubscribed from your newsletter to better understand patterns and behavior.
By the way — did you know you can customize that list of reasons? Just head over to the subscribing settings page!