I am putting this here to give you an idea of how World of Tanks is popular in Russia. There is a World of Tanks FB group, which has cca 1,25 million “likes” – and that’s for the entire world. As you may or may not know, Russia on the other hand has its very own social network called Vkontakte (lit. “in contact” – there are more Russian-exclusive social networks such as Odnoklassniki, but that’s a long story). Anyway, this VK group has almost 2 million fans.
Wargaming did put up an event where if they get 2 million until 18.12., there will be (on Russian server only of course) two x2 XP days as a reward. Here’s a video accompanying it, with English subtitles available.