No. If your differentiating feature is a principle, then you can't ignore that principle. Today, DVCS is essentially the foundation of developer social network

No. If your differentiating feature is a principle, then you can't ignore that principle. Today, DVCS is essentially the foundation of developer social networks, both formally (github, bitbucket) and informally. How are you going to make a supposedly decentralized open source social network when the foundation isn't decentralized? Mom doesn't care right now whether a social network is decentralized and open source, developers do.