They're escaping the quarantine zone!
Well, I do care about new Windows machines becoming part of a bit torrent swarm without the consent or knowledge of the end user. At that point, it's not just Lemming self-flagellation anymore. That's something that can impact me if I happen to be sharing a network with a new WinBox. Plus friends and family will be impacted and likely experience "mysterious internet slowdowns".
I'm not a Windows user but I'm often called upon to rescue them.