[Nothing else that anyone would admit to, at least, or perhaps they, like Lelouch, were actively avoiding using their more destructive/disruptive capabilities? He'll keep this thought to himself, of course, but.]

A survey would be a good start. Granted, it could very well invite backlash from our seasonal overlords, but I doubt they'd do so publicly if they were intent upon maintaining a benevolent facade. At the least, we could also prepare ourselves for such a thing and know to raise the alarm should there be any suspicious consequences.