Harry Potter and the Deathly Hallows (novel)/Headscratchers

Please check JK's FAQs before asking a question that may have already been answered.

Headscratchers about the book: Specific Topics:

 * Let's Hate the Mudbloods!
 * Molly vs. Bellatrix
 * Slytherin House
 * Hogwarts and Ministry of Magic
 * Voldemort's Final Duel
 * Wand Disarmament
 * Luna's Bedroom Wall
 * Wizarding Prejudice
 * Sirius and Grimmauld Place
 * Why Don't the Trio Just Shoot Him?
 * Severus Snape: Good or Bad?
 * Hermione and her Parents
 * The Epilogue
 * Albus Dumbledore: Good or Bad?
 * The Deathly Hallows

Unsorted examples:

 * Unsorted