So you're comparing to Kin being like a stock, why do they call them crypto-currencies then?
They call then 'crypto currencies' because they are 'totally cool' and 'trendy' and full of 'hype and future' - to gloss over the actual facts of what they actually are, in financial terms.
Where there is undue investor sentiment, and an inability to map the real meaning of the financial instrument - then those issuing whatever-it-is have significant leverage.
The biggest story of the 2010's will relate to the fact that most in 'tech' are viewing crypto-currencies from a technological perspective, while not having sufficient background to see their relevance as financial instruments.