So, I'll just address it briefly in it's own discussion.
Harm and XP, why aren't they related? Closely related. They're barely tangentially related.
Was Clinton just working off of the D&D model, of separation between Hit Points and Experience Points? I'm gonna assume so. I mean, the three Abilities that every character has are basically third edition D&D saves(Fortitude, Reflex & Will).
Somehow Harm should make accruing XP easier.
Maybe Harm fills a shared XP pool, that until you take Harm, can't even be awarded(for things like Keys)?
Like if no one has taken Harm, no one gets XPs from Keys.
In standard TSoY, if you trigger a Key, you grab a physical token, whatever you use to represent XP. It's a given that it's there. Maybe make that less of a given?
I'm just spitballing, but it seems weird that they're not connected.
I love the specificity of Keys, they're excellent player motivators.