Not even sure what that means or why that would matter if you ended the raid party perishing? So you would have to heal a little more? There is no way to fix every problem unless people just stop inviting people they don't know or can trust. I mean you don't have to join public raids. And people do not have to post links in public. I never have once posted my raid in public and I have opened many including four in one raid month. And I have never had one of my raids defeated. There is no perfect solution that will solve every issue that comes up but the only way an alt or "raid killer" gets into a raid is someone gave him the link.