I think the centralisation issue with most cryptocurrencies is quite interesting. Almost all of them have a generally accepted organization that controls their

I think the centralisation issue with most cryptocurrencies is quite interesting. Almost all of them have a generally accepted organization that controls their development. This organization can make large-scale changes but controversial ones usually lead to breakaway forks. Theoretically these forks could be more valuable than the one controlled by the organization. In practice if a fork wants to be successful it's going to need its own organization.