That's just the theory of the author of that essay. It has never been tested in court. The "judgement" the author claims at the start of his essay was actually a settlement offered by someone who thought $10000 was worth less than the risk of a court case. (Perhaps because he didn't want to be publically accused of downloading gay porn.) That whole essay is based on deception, and the author is a sleazebag.

http://torrentfreak.com/are-you-guilty-if-pirates-use-your-i...