I have noticed that many social science articles posted on Hacker News bring out critical comments about study design, doubts about the strength of the study's conclusions, that kind of thing. This submission, on the other hand, is a link to some kind of gaming news website, which links to an abstract for an article in a Cyberpsychology (?) journal which costs $60 to access, and there is widespread and uncritical agr…
So since we have learned that violent song lyrics does not cause anti-social behavior in teens, nor that of violent movies, it seems as a good default stance that neither does violent video games. I would also default the same stance to porn consumption, based on the same logic.
I would prefer if we got a final study that gave a definitive answer if consumption of fiction causes anti-social behavior. It seems to me that fiction is simply an medium for which people can safely explore cultural norms, but in terms of causing anti-social behavior we would need to look at social environment and biochemical triggers for social behavior.