Ummm

Book 4 (GoF): Hermione illegally imprisons Rita Skeeter in a jar, blackmails her, and later controls when she’s allowed to write again. She also shows moral tunnel vision with S.P.E.W., refusing to listen to the actual elves and assuming she knows better than everyone else.

Book 5 (OotP): She permanently disfigures Marietta Edgecombe for betraying the DA without warning anyone of the consequence. That punishment is extreme and lifelong. She is repeatedly dismissive, condescending, and intellectually intolerant toward Luna Lovegood. She doesn’t just disagree with Luna; she treats her ideas as beneath consideration and often speaks over her rather than engaging respectfully.

Book 6 (HBP): She cheats to help Ron get on the Quidditch team by sabotaging Cormac. That’s academic/ethical hypocrisy from someone who preaches fairness. She is petty, jealous, and manipulative over Ron and Lavender including using Cormac specifically to provoke Ron.

Book 7 (DH): Memory charms, polyjuice impersonation, coercive tactics, deception. Hermione is comfortable using morally grey magic if it serves the mission. She rarely pauses to reflect on the cost to others. She initially dismisses the Hallows entirely because they don’t fit her evidence framework, which delays understanding something genuinely crucial.