YMMV / Batman: Thrillkiller

• Complete Monster: Bianca Steeplechase is a ruthless gangster known as "The Joker". As a message to those trailing her activities, Bianca has Robin's family and informant Selina Kyle killed. When Batgirl and Robin confront her, Bianca kills Robin in front of Batgirl and mocks her about his death. After escaping, Bianca resurfaces as the wife of a mayoral candidate and works with former Nazi scientist, Otto Saunders, to produce a dangerous and highly addictive drug. Ultimately hoping to rule Gotham politically by using her husband, while she gets rich off a drug epidemic, Bianca is a power-hungry monster.
• Misaimed Fandom: Many readers initially took Bianca's attraction to Hayley Fitzpatrick for the apparent queerness of it at face value, without remembering that Bianca is essentially a ruthless, unhinged murderer who is now also up for statutory rape since Hayley's a teenage girl. Their "relationship" only proves how insane the two are since they're bonded through their madness and bloodlust.
• Moral Event Horizon: Hayley Fitzpatrick crosses it at the very end of the last Thrillkiller story when she cements her transformation into Harley Quinn by murdering her parents and little brother.