It seems people are quite brave hidden in anonymity, behind their keyboard. I imagine they'd be far more polite and reasonable face to face.
It's interesting you say that. When I left dubdumb, there was no Internet. There was a fad among the dubbies to write letters if you had trouble talking to a person. I got letters after leaving, which I refused to read. My mother asked me why and I told her it was not an assertive, grown up way to communicate. Also I didn't want to communicate with them, lol.
I remember one person writing me a note who was a sincerely nice person--the exception.
This other childish, self-centered douchebag bully was big into writing letters. I suspect she liked it because she felt she could always have the last word. I ripped hers up. Years later, I ran into her and told her off. (I am the opposite of the quote above--I am more polite if I can censor my thoughts by electronic means.)
I think this quote originates on a web article dealing with narcissists.
Probably and it's apropos. Narcissists are very emotionally immature and center their entire selves around themselves. It fits dubs very well.