[azelfrath]

>As for the courier companies, every time they have to deal with a bad label or anything that requires a human to step in to help process the shipment you are slowing down the production line. Watch a couple videos of a Fedex or UPS sort facility to get an appreciation of what they deal with daily.

Vouch.

I worked as a FedEx loader/unloader for a year in college. We wear these cool wrist-mount computers with scanner rings to inventory the packages. A smudge, tear, wrinkle, or glossy tape can make reading the barcode a pain. When that happens you have to set the package aside, key in the numbers by hand, confirm the info, and then you can load it. Oh, and this is all while you are getting swamped with about 1 package every 3 seconds that might also need to go through this process.