http://v236xhqtyullodhf26szyjepvkbv6iitrhjgrqj4avaoukebkk6n6syd.onion/t/will-tor-browser-block-certain-websites/8850
If they want to ban some content, it’s better to just block by IP address, or more effectively (yet useless), DNS queries. Controlling the content online is just really difficult and expensive and only useful for non-tech-savy users.