Scars are made to make your life harder. That is their purpose. In my experience, scars are inflicted pretty rarely, usually in the early game when I stepped in a bear trap or a hedgehog has jabbed me after I hit him with my bare hands. Scars make players more careful, because if you are not, then you get penalised for it. You are over exaggerating.
Azhael wrote
Also, since they're applied as penalties rather than a direct decrease to the relative stat, it means it makes training harder.
That is intended.
Azhael wrote
So, given that there's a point where training agility gets ridiculously hard and there's no way to remove the scars, you'll end up with less agility just because.
Agility training is not very useful tbh. Also, I doubt that 1 point of agility really matters.
You can remove scars.
SPOILER ALERT. Click here to see text.If it is located on a leg - then just get some broken bottles and step on them until that limb is severed, then drink a healing potion to regenerate it. Bear traps are also useful, but are more dangerous. Using a SoCM on limbs also should work, but I am not sure.
EDIT: But we probably should implement some way to cure scars. Maybe priests can cure them for a very big price, or praying to Seges while having a good relationship with her...