Provide a detailed and clear description of feature or change that you want to offer.
The concept is as following - implement a config option which, when turned on, will make it so that soul loss from bearing Ring of the Seven Curses does actually permanently reduce player's health, instead of spawning a Soul Crystal which can be picked up to regain it. Furthermore, this option will disable a limit on how much of soul player can loose, ensuring permadeath as soon as they loose it all.

Describe why you want this. If there's a reason.
Why not?