Apparently, many people disagree with you; otherwise, we would not be in this situation. I agree that centralization is probably not a hard requirement for the

Apparently, many people disagree with you; otherwise, we would not be in this situation. I agree that centralization is probably not a hard requirement for these properties, but currently no one has come up with decentralized equivalents that provide users what they actually want - and remember, you don't get to tell them what they want!