While reading the article and stumbling upon the line
...Latin America is the world region where most cryptocurrency users are located,...
They must have their methodologies and methods and all. They must have a random sampling and I hope it was scattered as it should be. But, without any prejudice, the result was kind of surprising to me. The second spot, for example, where cryptocurrencies are most common, goes to Colombia, together with Brazil. I haven't heard much of cryptocurrencies being very widespread in Colombia. I think I must have missed a lot of news.
[1]
https://www.statista.com/chart/18345/crypto-currency-adoption/Don't you find it funny they say Japan is at the bottom? You know, home of defunct Mt.Gox, first country to legalize Bitcoin, etc, etc...