The AD is good and what or who did it hurt posting several times except maybe a few: Petty Nitpickers, Perpetual Grouches and those who are Habitually Offended.
Petty Nitpicker: to find fault, often unjustifiably, with insignificant details of something.
Perpetual Grouches: people who are habitually bad-tempered or complaining.
Habitually Offended: those people who will not sleep at night until at least one person has hurt their feelings.