I've already burnt through about 60 of them and still have over a hundred to go :)

Ruin is a fair perk to nerf since that's used by 99 percent of the killers in the game. I personally like to mix my perks as killer and survivor but that's because I don't like to complain about one perk being nerfed ;) There's alot of perks to use besides no-ed and ruin but some people never learn past that. Just like when your survivor there's more perks to use besides self care or adrenaline. Forces you to learn a different way so I personally am for it.