The problem is how to define "light moderation." I'm sure your idea of light moderation is not the same as everyone else's. Is it giving warnings/banning someone who is consistently unpleasant? Is it giving warnings/banning someone not respecting the rules of a thread?
I did once support the idea of getting rid of someone who is a bother to most of us; but we've worked pretty well - being able to ignore and shun such a person. I see too many downsides - let alone how annoying it would be, for Wook, to make the kind of subjective calls each person has in mind.