I'll speak with anyone willing to help solve technical challenges associated with this model. But until someone comes up with something "damning" then I'm going to keep moving forward.
You don't always need a singular, damning situation in order to prevent a model from being implemented. Sometimes dozens of purgatorial ones are plenty.
Using the CPU power of a device that is capable of playing video games to calculate your social graph (that is stored on that same device) is extremely powerful and well worth the time and dedication.