These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Casey comes off as a grade A jerk at the best of times but it's possible to sympathize with the unfair family dynamics he faces...although given how he doesn't want his big secret known it fuels his jerk behavior to keep people distant.
The Woobie: Recent orphans, long-time orphans, dead siblings, werewolves, squibs, almost-squibs, outcasts who turned to crime after being rejected by society, children turning to dark magic out of desperation, a handful of possible insanity cases and at least one guy who's stuck as an animal...yeah, it's safe to say that about half the characters could fall under this umbrella at any given time. It mostly depends on the tone of the thread and writers involved.