I'm not sure whether we are redefining it... I suppose it depends on what definition you were starting with! My idea of "decentralized" includes things like "c

I'm not sure whether we are redefining it... I suppose it depends on what definition you were starting with! My idea of "decentralized" includes things like "continues to function perfectly well if any one person or small group is removed from the process" and "continues to function perfectly well if any one person or small group becomes malicious". In this case, if Vitalik Buterin were not around to announce the problem, someone else could announce it and that would provide a coordinating signal for all of the independent players to act on. If Vitalik Buterin were malicious and decided to announce a rollback of a big spend he had done, then the independent miners and mining pool operators would (I hope) choose to ignore the announcement and refuse to participate. I guess to me, having a centralized group or individual make decisions seems to violate "decentralized", but having one of several possible groups or individuals make announcements which signal the population to take action does not.