Really, I have nearly twenty of his handles in my kill file...

As if you had the "technical expertise" to set up a "kill file."

From the Cleveland Clinic:

Narcissistic personality disorder is one of a group of conditions
called dramatic personality disorders. People with these disorders
have intense, unstable emotions, and a distorted self-image.
Narcissistic personality disorder is further characterized by an
abnormal love of self, an exaggerated sense of superiority and
importance, and a preoccupation with success and power.