Further, we must assume he was chained to his keyboard, not allowed to log off and limited to only one website.
He may as well sue his computer manufacturer and ISP. And the person who taught him how to use the computer. Heck, throw in the operating system manufacturer. And the power company that provides electricity to his home or any other place he signed on for the abuse. Not to mention the company that made the desk on which his PC sits, and the chair maker.
Come to think of it, he should sue God for giving him a life that could be so harshly treated.