GH is lock town. Ability makes no sense for scum. As per my miller bit, Zack's bastard days are long since passed.
What I'm getting at is, if a scum-team power, it would be available to temporarily revive any lynch (or night kill?). This means if scum had lynched at some point, they could have revived them just to muddy the waters. This isn't a power that need only apply to town, and I think we even touched on it a number of games ago. In Futuramafia, vanilla townies had carte blanche to post and participate, but lynched scum and town PRs did not. Zack having a setup where no dead can speak but there is a power which permits dead-speak is an adjacent step.