But the two items I was most surprised by were that Sydney says she learned vocabulary and problem-solving from videogames. I don't doubt at all that they're true, but learning vocabulary is not something that's normally expected from playing games, either online or offline. Still, words like "mitigate" (her example) are used all the time when theorycrafting, and while there are a lot of jargon words floating around (you'll probably never use "tanking" in a real life conversation), just using that vocabulary can help. And problem-solving is obvious, not just in WoW, but in all videogames-- you could argue that all videogaming is simply being presented with a problem for the player to solve.
I'm not saying that we should all play WoW all the time instead of going to school (sorry kids). But when people with self-control and a good center play videogames (as opposed to people who don't), all kinds of good can happen.