It's essential to remember that diagnosing someone as a narcissist requires a comprehensive evaluation by a qualified mental health professional. Narcissism is a complex personality trait that exists on a spectrum, and it's not appropriate to label someone as a "pure narcissist" without proper assessment and understanding of their behaviors and underlying motivations.
If you have concerns about someone's behavior or personality traits, it is recommended to consult with a mental health professional who can provide a thorough evaluation and guidance.