KFC
Google Streetview is a fantastic tool for getting a sense of a neighborhood before visiting it or for looking at your own home and attempting to determine the day the photo was taken. Nevertheless, if you take enough time to look around, especially in popular locations, you'll discover that if the Google cameras ever manage to capture a human, their face is hidden. This makes perfect sense because it is a privacy issue. Most people don't want their names to appear on Google when they didn't request it.
If you ever find yourself looking at a map and seeing a KFC, you'll note that the restaurant's sign is also partly concealed. The part of the Colonel Sanders' face that is hidden in this is at every KFC location. The cause? Harland Sanders was a genuine person whose identity Google was guarding. Of course, not proactively, but as a result of the facial recognition technology Google deploys. This is also seen on billboards and banners, albeit it's certainly not the ideal promotion for a well-known brand. Since so many of their signage are compromised and KFC is such a well-known brand, they are just the most apparent victim.
The faces might all be blurred because they are all hidden by software. KFC has stated that they would like to see the Colonel's face, but since the software automatically blurs faces, it is likely that the operation would need to be done manually. It's improbable that anyone would be interested in spending the time and money necessary to do this.