See ,people give prediction for the PNRs.So when a ticket gets confirmed through HO,it is entirely different scene.Say W/L 10 remained waitlisted and W/L 298 gets confirmed through HO.Now in such case PNR predictions may get wrong.Just to nullify this effect,tickets confirmed thru HO are marked Void.But here there is no prediction.So it is confirm.Afterall this Confirm in fact