I don’t want social philosophy from the people who design my communications protocols anymore than I seek legal advice from the dog groomer. Just do your stinkin jobs and twiddle bits.
These people are at least more perceptive — they know this network is going to be social so why not get ahead of the parade?
I think it morally is up to YOU and ME whether we need Facebook or Google or whatever, and if so, how much and in what way. If people want to wander into a cyber-public with loose minds, they should logically expect what they get.