Why dead? It is sleeping...

I think we won't see any progress with this project in the nearest 2 years. It's still too early for implementation of such ideas imho. Maybe later...
Nope, Facebook already shoot down the idea years ago, when regulators coming in hard for them. They don't have Mark to have control of the market and the potential pitfall of their product. Imagine Facebook has total control and monopoly of the market. They could control everything at their fingertips and this is what the regulators doesn't want to.