Sorry, this is a bullshit argument. The administrators set out to create a site to assist in piracy, hence their name, hence their advertising that you can find TV shows, movies, etc on the site. It's not even a secret. You are either engaging in sophistry or are naive to claim they are a neutral "common carrier" status.
Since you are either playing dumb or otherwise, here it is, spelled out for you:
As befits an organization of global disrepute, Pirate Bay had its beginnings not in Scandinavia but in far-off Mexico City, where Gottfrid Svartholm was working, in 2003, for an Internet-security firm. As a devout member of Sweden's pro-piracy Web site Pirate Bureau, Svartholm agreed to use the security firm's servers to launch the Swedes' BitTorrent venture, and when he returned home the following year, he found a new accomplice in Fredrik Neij, a self-taught programmer who got his first job through a criminal act. "I hacked a company's service provider and put up obscene messages," says Neij. "The company said work for us or we prosecute." Asked why he committed the original act of vandalism, Neij responds brightly, "Because I could!"
By the time Neij got involved with Pirate Bay (there is a third, silent partner, named "Peter"), the site had effectively outgrown its host. "We had no idea it would happen," says Rasmus Fleischer, co-founder of Pirate Bureau. "It started off as just a little part of the site. Our forum was more important. Even the links were more important than the [torrent] tracker."
With a membership of more than 60,000, Pirate Bureau was originally devoted to the unofficial distribution of music files; expanded bandwidth enabled the transmission of video files. Fleischer neatly summarizes the ethos of his site: "We don't want to reform copyright lawâ"we just don't want the state to enforce it."
Fleischer likes to frame the copyright issue in historical and theoretical terms, expounding on ideas about "how value is produced in the cultural sector." He sees the notion of music copyright in particular as a transitory construct. "This has been the business model for some bit of the 20th century," he says. "Music has always worked in different economic ways, and copyright has only applied to a few genres historically."
Does that sound like a neutral ISP to you?