Hm, not sure what I was thinking there. I'll try again: teasing Ed about his height is intrinsically humorous, so any reaction which builds his character will be humorous, so the only question is how the humor will be treated and it's pointless to criticize whether the humor is over the top or moderately broad or very subtle - which kind of humor is best will depend on the audience. That there will be humor must be the case for any decent author, as Arakawa most certainly is. (Notice Nornagest didn't criticize all the other character-building repeated elements/motif/themes which range from humor to philosophical to tragic, like the watch, which suggests to me that he simply doesn't like the jokes about height, not that he is making any real point about the general desirability or functionality of these mixed genres. And come to think of it, the height jokes are why any reader is paying attention to how tall Ed is, which ultimately pays off for the reader when, towards the end, he realizes Arakawa has been subtly drawing Ed taller and taller - he is a character who literally grows.)