This meant the Scarlet Crusade were committing genocide, and players had to show up and stop them. Because of the Scarlet Crusade, and general human fear of undeath, Sylvanas and her undead ...

Whether you love them or hate them, the Scarlet Crusade remains one of the most interesting factions in WoW, and they're attached to the Ashbringer that the WoW community is so fascinated with.