These are wonderful stories about how, despite being sequestered in our living rooms in front of the TV, gaming can also be considered part of society. These are our friends we're playing with, even if we've never met them. Even if you're just playing random strangers, as happens quite often, you still have that connection from the game that you all love playing. It's this kind of camaraderie that triggers things like the above stories.
I know there have been negative stories of online abuse as well, but those can happen with any online presence and are not restricted to gaming. Thus, they're not often talked about when online gaming is discussed.
But perhaps that may be ending.