Second highest percentage of usage for Arkham is found in the Russian Federation. I'd predict Russia is using this website to the fullness of its abilities to discover information about rich people, or other groups that hold large amounts of cryptocurrency. Not necessarily a good thing when Russian Federation uses this site more than other places considering the state of extremism Russia is moving towards. Data according to info on crunchbase.com* The logo of arkham looks like a pentagon, similar to things Russian's like to attempt to attack, hack, and infiltrate.