I would love for the Comment App to have some sort of way to reply to user comments and be able to notify them when someone has replied to them!
Also, would like some sort of way to auto approve when they are in a members only area.
Major +1 for notification to be sent to admin when a comment has been posted (preferably only legitimate ones that have made it through the spam filter).
I have a couple of clients requesting this recently.
This is currently possible by using perch_forms at the same time.
On the Perch comments form you can also post to the Perch forms addon so that when a comment gets submitted, it also posts the data to perch_forms where you can then set up an autoresponder in the form options to say a comment has been left and requires reviewing.
So, on your comments form template, you would have...