To throw a small wrench the ones who seem to be paying the ransom are primarily Russian users and Korean Users although that is only small change in the big scale hopefully growth in South Korea remains steady and organic especially as an alternative location to the Chinese exchanges.
Users with infected computers in Russia and South Korea are so far the two biggest ransom payers to the hackers who mounted a global ransomware attack, called Wannacry, yesterday, according to new data from Chainalysis, a provider of software that works with banks, law enforcement agencies, and bitcoin companies to analyze the blockchain for financial crimes.
https://qz.com/983186/global-hacking-attack-has-russia-and-korea-paying-out-bitcoin/