Two thoughts come to mind:

1. Do the Apple Engineers assume in the design that people will "block" the heat that is likely generated from the display with stickers? This almost seems akin to placing your license plate on the front "grill" of your car since car manufacturers seems to have "removed" the front license plate option

2. Although I yearn to join all of you in this continued Mac eco-system, I continue to struggle with the migration from the Office products on Windows to the Office products on Mac. It continues to appear that the Office version Windows is far superior to the Mac.