[Horror] Why Roll vs Corruption So Early?

[Varyon]

Originally Posted by Plane

Yeah it seems odd, if we're going to bother with rolling when someone has 24 or fewer corruption all I can think is converting it to decimals, ie 1 point of corruption becomes -0.04 character points.

I think Corruption is a lot easier to get rid of than a Disadvantage that you've acquired due to Corruption. So, using your suggestion, that means failing the roll when below 25 Corruption doesn't cause you to gain any new Disadvantages/Quirks (or lose Advantages/Perks), but rather "locks in" whatever Corruption you've already acquired, making it harder to get rid of. That would give the roll a purpose, at least.
(I still like my suggestion, that failure causes you to gain a Quirk, and any Corruption you later gain automatically "fills up" that Quirk until it reaches a full 25... but I'm biased)