The thing is it even goes beyond bad looks. Even though the person in the picture probably doesn't have a deformity or anything, there's plenty of people that have had severe scoliosis or kyphosis or something that has caused many traumatic experiences. Not being able to get a job, live a "normal" life, leave the house, etc. Like when I see someone making fun of people for having a hunchback or something it really gets me in a way basically no other "insult" does (except for homophobic/biphobic stuff as I'm bi).