Bingo. Probably the number one reason people use VPN's is to prevent their ISP from identifying them to the original producer of pirated media. That way they can safely download movies, premium TV shows (Westworld, Game of Thrones) music, software or porn from a torrent site. Otherwise these companies, especially HBO, Showtime, and the movie/music producers will eventually ID you - with the assistance of your ISP.
Or so I've been told.
well yes, he do download movies and songs and shows. maybe he wants to cover all that fishy activity he is doing which includes porn as well.