Centralization (crypto. context) - central authority(ies) having the power and ability to change/enforce things that the end-user/community has very little to no power to do anything but follow along. I think this is a tough one though too, since if you don't like a fork then the decentralized aspect of a blockchain allows the community to follow an original chain and build their own ecosystem, but that requires time, resources & effort. Keep in mind I think some form of centralization is inevitable for all cryptocurrencies due to human nature, but I don't really mind either path since they both have positives and negatives.. so long as it's clear whether something is or is not centralized. My 2 cents.. felt like chiming in.
Edit: So the VRC blockchain itself is decentralized, but the powers built up around it that make decisions are a central point of authority.. like pretty much all coins.
The problem there is a few people are deciding to save a website and delete the attack from, and completely destroy the integrity of, the block chain.