Want to get rid of an account on a vBulletin.com forum? Then you’re unlucky, because you can’t remove your vBulletin account.
See: http://www.vbulletin.com/forum/showthread.php/14995-Can-a-User-delete-his-her-Account
If you run a vBulletin board yourself, consider using this user contributed hack: http://www.vbulletin.org/forum/showthread.php?t=105181 – it allows users of your forum to delete their account. A privacy feature that is most welcome nowadays.
Some sites using vBulletin software:
scubaboard.com, flashfocus.nl.
URLS:
http://www.vbulletin.com