Why is ivolunteer.com not requiring volunteers to confirm their commitment when NOT in Kiosk Mode?

After an email address has volunteered and verified once for an Organization, any subsequent sign-ups from that email address from the same browser will be auto-confirmed.  That “Verification Required Once” behavior is the default Verification Mode.  If you prefer for volunteers (outside of Kiosk Mode) to always receive a verification email that they must confirm, you can change the Verification Mode to “Verification Always Required.” This setting is under Event Settings > Emails. Your choices are: “Verification Required Once,” “Verification Always Required,” and “Verification Never Required.”

NOTE: Using “Verification Never Required” is not recommended for normal use.