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.
Ethnic Scrappy: Rochelle's entire characterization revolves around her race. A deleted scene reveals that it's not just Laura who's a racist bitch; the entire school ostracizes her because she's black (except Nancy, who throws it in Rochelle's face when she and Bonnie try to get her to lay off the magic). Many viewers were annoyed by the film's clumsy handling of racism and that Rochelle had no character beyond that.
Nancy's initial home life. She lives in a shack like house, with an apparently abusive and lazy stepfather. Their house was in such a bad state that during a thunderstorm, you can see it leaking in Nancy's room.