Virtual currency
This one is the most inaccurate and misleading term to describe a decentralized currency aimed at fixing some major shortcomings of the traditional financial system. While virtuality and particularly a virtual world can well be a good-looking extension of reality, it can't exist on its own without software and people actually "living" inside its environment. Decisions made and actions taken inside a virtual environment can't affect the state of the physical world, which means they only matter for the concrete instance of virtual reality. Virtual currency is also a part of the said virtual system; all economic activities involving virtual currency simply cannot improve the state of the real economy, let alone this currency has no way of becoming a globally-accepted means of payment. People who understand what this term really means can use it to attack bitcoin because virtuality is often associated with frivolousness, childish behavior, and pipe dreams. In their opinion, people who will use such a virtual currency are certainly not capable of making serious decisions, including those regarding the management of the economy.