The Alternative is Uninformed Delivery

Did you know that you can go to the postal service's website and sign up for 'Informed Delivery' and you'll get emails on a regular and recurring basis with a preview of mail being delivered to you? Oh, you knew that already? 

So I'm the last person on earth to find out? Again. Okay, I'll learn to adapt I guess. Anyway, I learned about it only about two weeks ago or so and am quite taken by the notion or was until I got this in my email yesterday.

This, in my opinion, is like a highway sign that says "Watch Out!" 
For pedestrians? For trucks entering the roadway? For rockslides? For the electric slide? C'mon some specifics, please, the suspense is killing me.
-bill kenny