My experience being bulletproof back in Grima's Rebirth made it so scum had to get me lynched to get rid of me. So I'm not sure how this is scummy?
Assuming they don't know already, scum would want to know why their kill failed Night 1. If Reinforce was the nightkill target and if they give a yes or a no, then scum will learn two big things : first, the doctor (if any) was/wasn't involved; and secondly, the player is/isn't a safe nightkill option.