I may be missing something here (which wouldn't be unusual) but it doesn't seem like the Volunteer Module is enforcing required fields.
I may have set up the CiviCRM 1.4 profile incorrectly -- though the required fields work perfectly enough in Stand-alone forms -- but we're having volunteers filling out the forms and not including things like their name or email address.
Is this a bug? Am I the only one to run into this?