Yeah. The whole idea is basically that Peter, the elder child is quite the ambitious young man, and persuades his sister to go along with his plans. He sets up Locke as the reasonable, statesman persona respected by all the smart people, and his sister writes Demosthenes, more popular, and populist, author, who's stock in trade is occasionally paranoid anti-Russianism. He coordinates them, but she writes them, so they don't read the same, and can pass a writing analysis to confirm that. The irony is that each character by inclination would write the other one's articles, but Peter wants to be the ruler in the end, and Demosthenes can't do that. And of course, the pen names are pretty obvious statements.
Anyways, it seems pretty ridiculous on it's surface, although it becomes less so if you think of Peter as the equivalent of a Nate Silver, multiplied a few times in raw talent, an trying to rule the world (although we never know about Nate...) Yeah, the internet is obviously pictured as smaller, but it's beyond the realm of possibility.
And about the Russia thing. It doesn't bother me that much, due to retcons, which remove the references to the Soviet Union, and Russia's own foreign policy. If you follow the sequels, Russia is clearly portrayed as a country in steep decline, noticeably behind China (the world power) or even the West. So they try to grab power to compensate. Honestly, Russia is going through a toned down version of that in real life.