Hmmmm...
Thats 30,000 to 40,000 kids who could be out playing catch, doing sports, spending time with siblings or other family, getting chores done, learning a new skill that someone might pay them for someday...
Or thats 30,000 to 40,000 adults who are contributing nothing to family or society during these online sessions...
I am glad I am just old enough to have missed this obsession when I was growing up.
Or you could say that is 30 thousand that are doing something that is social (because it is) instead of just watching brain rotting TV. When I played EVE I played with my wife. I know personally some my friends at that same time were watching TV in separates rooms because they did not like the same shows as their spouse.