I changed from PPF! to WarriorNerd to CrowZer0. CrowZer0 came from two Takeshi Miike movies called Crows Zer0 and part two, really enjoyed the movies, checked out the Crows and Worst manga's the movies were based on, decided to call myself CrowZer0 on steam to see if people knew what I was referring to and everyone started calling me Crow, named my clan after Crows, and just stuck with it.