Even though Bitcoin was conceived as a grassroots democracy it cannot live up to this standard – it is entangled in ideological and economic internal conflicts. Similar scenarios might occur insight a blockchain financial network, even if the latter will be permissioned structures.
Beyond the spectacular cases of illegal or illicit use of virtual currencies (see in particular the Silk Road case), concerns about money laundering and terrorist financing surfaced very early on, leading to relevant regulation in New York and intense debate in Europe and elsewhere, including at FATF in Paris. Two characteristics inherent in blockchain technology considerably facilitate illegal activity. However, in the Bitcoin environment this is more of a problem than in any future DLT network set up by regulated entities.
The function of blockchain systems used in financial markets might at some future point in time place them among critical infrastructures such as settlement systems and CCPs. Blockchain financial networks would provide a service that would not be easy to replace should they fail to function properly. As networks linking a multitude of financial market actors, potentially of different types, they are also highly interconnected. Hence,, such networks are destined to become important in terms of financial stability once they have attracted a certain volume of assets and a critical number of users. It might therefore be necessary to regulate blockchain financial networks with a view to ensuring that they are resilient and do not contribute to systemic risk but, ideally, help to reduce it.