Since the revelation that she was Voldemort's daughter, Hermione used her newfound pool of power to get Voldemort to shut down the rape rooms, seeing as they were unnecessary and just vile. She also managed to get around the secret keeper's hold on withholding some of the safe houses. She could reveal Grimmauld place to them, and that allowed them to hit them where it hurt. She could point out that it was an old Black family house, and with the help of Narcissa, she was able to reveal that it was Walburga Black's family home. For that, Hermione could tag along and do some damage of her own, personally killing Ron and a few other lower ranking Order members, and imprisoning Harry, but she also converted Remus and Sirius. What came as a big surprise was finding out they were a couple, but it did explain why neither of them ever had a woman on their arm, and always were together at Order headquarters.