Complex sentence: With over five million registered users, The Pirate Bay is ranked as the 71st most-visited site in the world and 12th most-visited site in Sweden, and it is one of the world's largest facilitators of illegal downloading.
Split into simpler sentences: With over five million registered users, The Pirate Bay is ranked as the 71st most-visited site in the world and 12th most-visited site in Sweden. It is one of the world's largest facilitators of illegal downloading.