You might have noticed that edits of a post or comment didn't initiate or resend shout-outs to other users. The intent was so that each new edit wouldn't result in redundant notifications. However, the downside of this approach was that adding a new shout-out had no effect.
Starting today, if you add a new shout-out in an edit of a post or comment, a notification will be sent to the newly added user, but not to users that had previously been shouted-out to upon submission or in previous edits.
In other news, insomniasexx makes it a habit to ask new users for feedback to help get a fresh perspective on the site. In a recent round, one of our users (I don't know who, insom will have to give the credit) suggested that notifications could be sorted by type. That seemed like a good idea. On your notification page, you can now view all notifications, or those from: comments, mail, shout-outs, and posts you saved. This is still a work in progress, but the basic functionality is there.
Of course, feedback is always appreciated.
EDIT/example: Thanks to lil and kleinbl00 for pointing out the need for the shout-out improvement.