There are a lot of different options available if you want to delete your information from GameFAQs. A list of options can be found here: http://www.gamefaqs.com/features/help/entry.html?cat=54
To completely remove your account, you must first delete your messageboard account, and it has to be closed for at least 30 days. You can use this form to delete it: http://www.gamefaqs.com/features/feedback/index.php?type=28
After you’ve waited for 30 days, fill out this form to complete remove you: http://www.gamefaqs.com/features/feedback/index.php?type=38
A bit too complicated if you ask us, but hey, such is life huh!
URLS:
http://gamefaqs.com
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