Yes, interesting debate - I tend to belive Reid Hoffman will be right in future ...
If we see the development of the last coupe of years, there is one clear trend, all over the world: INCREASING TRANSPARENCY -
This trend is mainly driven by TECHNOLOGY, and therefore I believe, there is no back, and the trend will continue. There are just many more ADVANTAGES of transparency than disadvantages for the society, even thought for an individual, transparency may be a bad thing.
Hence: in the long term, I think there will be much more transparency, and we will get a very different perspective on things like privacy -