Ask HN: Why does Amazon pay $5 to scan their box tape?
For example (screenshot): https://pbs.twimg.com/media/D6gFcEdUwAEvlHc.jpg
My uneducated guesses:
(1) To test if the boxes are taped correctly
(2) To get people to install the mobile app
(3) To get people into the habit of scanning codes with the app