I didn't mention the scoring system before, because it was a slightly obscure detail and the post was getting alarmingly long.

Edward's 0 came from He was not handsome (ch3). For most statements like that, about the absence of a quality, I didn't go so far as to interpret it as presence of the opposite quality, by slapping a negative score onto it.

2 was the usual score for an unadorned label, 3 was for when there was a 'very', and 1 was for when there was a 'slightly'.