Bullfrogg said:
Plus there's the fact that he KILLED A BUNCH OF PEOPLE. I don't think a World of Warcraft addiction is the nail in the coffin the prosecution needs to put him away.
If I recall, the prosecution are trying to prove that he's
insane (which would get him locked up in a nuthouse instead of prison, but also completely discredit everything he stands for). It's the
defense who are trying to prove he's a normal, sane individual (aside from the whole killing people business) and get him sent to prison.
So if I had to guess, I'd say the statement of the number of hours a day he played WoW is part of an attempt by the prosecution to convince the jury that this guy is a complete nutjob. (However much of an insult that is to other WoW players!)