Right, as it stands now people just instantly lynch Survivor without much cause when they get revealed from invest, they have to claim it when they survive an attack, or they just straight out claim it to save town nights of checking. But right now, it seems every time town has no leads they just want to lynch off Survivor so they won't get "backstabber" later on by a Survivor covering his/her hide. So, to make it a bit more pressing when lynching off a Survivor for "safety", I honestly think adding a feature just like the Jester -- when guilty voters die the following night -- gets added as a selectable option for Survivor. Why should this be added? Simple:

This fixes the "Oh, he's a Survivor. Just lynch him, he's useless to us and us killing him does NOTHING to us! He'll just backstab when Mafia threaten him, anyways!" and develops a more secure standing for Survivor. This also would put in a little fallback for Witch or Executioner if an invest checks them out and reveals it to town the following day, removing the hot-headed impulsive nature everyone has toward Survivor and makes everyone pause and think before going through with a lynching, and also lets Witch in most part have a more useable fallback plan, since if they claim they're Survivor, as it is now. . . Well, refer back to the quote at the start of this paragraph.

And if this does get implemented. . . Make it where Mayor's additional votes gives him additional chances of killing himself at night. Why? Dumb Mayors should be rewarded for hasty reveals and impulsive decisions.