IGN or associated accounts like GameSpy, GameStats and FilePlanet cannot be deleted. They share the same registration system.
From their FAQ (http://corp.ign.com/contact):
“We’re still working on advance privacy settings for profiles, but you can read our privacy policy here. For now, the easiest way to manage your privacy is to delete any information in your settings that you don’t want to share. Of course, we’ll never show your email or zip code so you’re safe there.”
Yikes! Go to http://corp.ign.com/contact and complain!
URLS:
http://my.ign.com
Thanks for the tip, hate that some sites make it impossible to delete an account.