You already know this, but nice to see behavioral science finer points:
“NEW RESEARCH EXPOSES THE NARCISSISTIC TRAITS AND FRAGILE EGOS OF ONLINE TROLLS”
“The study identified two types of narcissism prevalent among trolls: grandiose and vulnerable. Grandiose narcissists are overtly self-confident and seek admiration and recognition.
In contrast, vulnerable narcissists have low self-esteem, oscillating between feelings of superiority and intense insecurity. “