Are all Slytherins bad? Absolutely not. Often condemned simply for being Slytherins, being sorted into the house does not automatically mean one is a bully, a genuinely bad person, or a “Von Doom” in the Wizarding World. Even though it seems like it is almost a guarantee that Slytherins will grow up into self-serving, arrogant, greedy, and outright evil beings, it is clear that this isn't always true. Slytherin may get a bad rep. However, it was, after all, the house of the famous wizard Merlin.