Delete A Member

Is there a way to delete a member and have absolutely no trace of them being there? I made a test user on my forum, and I banned it, but it still shows up. Can someone tell me how to delete it and not just ban it? Thank you for your time.

yeah, you may do this..
admin panel >> users and groups >> search the user you want to delete
>> the last option is "delete the user ? this cannot be undone "
>> check it and then press save.

thank you!