Now you can buy a tiny bit more hive?
Probably :D
I think that 6 degrees kind of works for a web of trust, if the information is available. Even though a single point might not be valuable, once they are all stacked on top of each other from different directions, it would be quite accurate.
It is kind of like a story I have used with classes to explain different focus points.
There is a bank robbery and the police have three witnesses, Da Vinci, Michelangelo and Armani. While each witness might be able to identify a part of the perp, they will have more or less accuracy depending on their focus. Da Vinci notices the face, Michelangelo the body, Armani what they were wearing and together, there is a pretty accurate description.
While not a great story, it is easy to explain in a short time and I think if applied to a WoT it works. perhaps :)