To understand the logic behind those obviously absurd and inefficient bans, one should look deep into the very essence of the "checklist system" (палочная система in Russian). Once there's a law in place, requiring the police, the prosecution, the courts, the Ministry of Justice and the Ministry of Communications to find and censor "bad" websites, it means that they have to find and ban some URLs every other month, just for the record. It does not matter much, whether those sites are actually bad, or how many million other sites do carry the same content, but haven't been included in the current version of filtering blacklists. There is only one relevant KPI for every single official in the chain: a checklist, showing how many sites they've blocked in every given month.
There is one district prosecutor in Ufa, who initiates the whole judicial process of blocking Russian copies of Hitler's Mein Kampf online, one mirror at a time. For every copy there's ample paperwork, starting from police investigators, who conduct primary finding of fact, then the district prosecutor's office, that petitions the district court to ban the copy in question. The court passes its ruling, citing the URL as stated in the filing. Then the Ministry of Justice in Moscow enters the URL into Extremist Materials' List, and Ministry of Communications updates its Banned Websites' Registry. Even before the cycle is completed (usually takes 2 to 6 months), the process reopens with another copy of same book, on a different URL. Five years since the initial inclusion of Hitler's manifest in the federal Extremist Materials' List, which is today, there are still some 300 copies of Mein Kampf in Russian, freely accessible online, and five years from now, there will probably be 3000. But every single civil servant, involved in the blocking process, duly receives his salaries, promotions and other benefits of government service, as long as he doesn't forget to submit the updated checklist to his superiors. That's how this system works, and there is absolutely no point in trying to evaluate its efficiency in conventional terms of common sense or public good.
Полный текст по ссылке, но указанный англотекст я оставлю тут, для того, чтобы время от времени делиться с интуристами, изучающим загадочную Русскую душу. А за термин "checklist system" Антону Борисовичу можно ставить памятник при жизни.