A was published on LiveJournal by Russian blogger. In his post the author encourages readers to embed the code into their websites and blogs as a protest againts moving a monument to Soviet soldier from Tallin's streets to the city cemetry. Those who comment are mostly pointing at technological shortsite of this action - first of all this code would ban Russians who live in Estonia from visiting Russian websites. They offer alternative algorithms, like banning based on language preferences in users' browsers.
Read more in Russian