DE Stein wrote:
... If this way of expressing themselves in normative for them (embedded in their character), then it stands to reason that they treat their friends, their families, probably most everyone but themselves, in this condescending, superior manner...
I suspect a large number are attracted to the internet for its anonymity and lack of consequences. And so they behave differently than in their daily lives.
The internet may turn out to be both the best and worst invention of the late 20th century.