From Habr.

Another curiosity is related to our censorship filter, designed to protect young players from the matches of more experienced players. The rules of filtration were so strict that the distribution of completely innocent “squeezed asshole”, “pirate sword” and a number of other items. And the very template file with the best samples of the Russian mother was such a spectacle that the ears could easily take the shape of a tube even before the middle of the list. Many have asked me about this file.