@demathraxyus it all comes down to shitty writing. that author chose to make his demons like people, and chose to write a scenario where even when demons are begging for their lives or haven't done anything, the mc overpowered asshole who can do no wrong is still totally justified chopping them...
More rules is more problems.
Stricter rules actually create loopholes, placing limits on mods means they can't slap someone breaking the spirit of the rules.