Who are these losers? I probably know the answer already.
It's the army of mediocre, good for nothing men out there, who were made believe that because they were men, they were entitled to the earth and more.
And now they find themselves in front of a computer at home doing nothing but watching porn (as no woman would ever come near them), playing online games (as they're so useless in real life that's the only area where they can win anything), and insulting women online as they're such cowards, they would not say what they think to anybody's face.
This is a new generation of academic failures, unemployed or subemployed trolls, who are so powerless and pityful in real life that his only way to show any power at all is by being nasty and spilling their venom on sites like that. Really sad.