http://www.gamepro.com/article/news/216196/addicted-lineage-ii-player-sues-ncsoft/
Smallwood, who claims to have logged 20,000 hours of Lineage II gameplay between 2004 and 2009, claims that developer NCSoft "acted negligently in failing to warn or instruct or adequately warn or instruct [the] plaintiff and other players of Lineage II of its dangerous and defective characteristics, and of the safe and proper method of using the game."
5 years = 1826 days
20,000 / 1826 = 10.95 hours per day
Imagine if he played something good.