men are more guilty of raw, abusive and insulting language that is not very sophisticated in its messaging. Mens online abusiveness is usually solitary... in that even if several guys jump in... they are each acting alone.
Women are more guilty of conspiratorial abuse and more sophisticated psychologically targeted abuse. They tend to form cooperative rings of abusive women to ostracize, humiliate or threaten... and they are more likely to enlist males to support their abuse- whereas male abusers do not actively seek females help in being abusive.
but more importantly than gender, is age.
It is overwhelming young people who use the internet to abuse others.
Teen cliquishness... and narcissism, in a culture that postpones maturity, allowing that adolescent behavior to hold sway well into the late 20s and early 30s.
Above a certain age/maturity level, abusive behavior online fall off to just the small core of really genuine trolls, and self absorbed assholes.