@Silkforcalde - I chose to roll a character on a PVE server because I wanted to enjoy the story and character progression without getting attacked by another player. Please don't take this the wrong way - I enjoy PvP and PvE both, but I want to PvP in designated zones/worlds or when I choose to flag. I don't want to be focused on a mission objective and be killed by a random player for their own enjoyment as I don't enjoy that. If I did, I would have rolled on a PvP server. Thanks for your opinion and feedback, but I feel that many of us on the PvE servers are here for the same reason - we don't want to PvP when we don't want to.
@OP - I completely agree that if a person is healing an NPC on a PVE server, they are griefing and should be reported. This is the same, to me, as the stealthed, flagged PvPers on a PvE server hiding in an NPC mob waiting for a hapless PvE focused player to come along, use an AoE on the mobs and then get autoflagged for PvP without their knowledge. I fully support reporting this as a bug!