OMG what a loser! fleur is right in everything she said. i'm a psycholgist, so take it from me too: this guy has SERIOUS psychological/emotional disturbances, self-worh issues, and resentment towards beautiful women, one reason being THAT HE CAN'T GET ANY!!! And instead of seeking help for his problems, he deals with them the only way he knows how: judging and criticizing what it is that he knows he's not worthy of having.
My scenario about his probable life: he was the fat ugly geeky boy in school (not that there's anything wrong with that), who was made fun of and bullied, in high-school all the girls ignored him or teased him, and one of his parents/guardians (most likely his father) was at least psychologically/verbally abusive, thus leading him to feel like an unworthy pathetic creature. His job sucks, if he even has a job, and due to his narcisistic personality traits he doesn't have any real friends and always feels like the victim. His only "enjoyment" in life is putting down others, as was always done to him, and of course over the internet where he can conveniently hide behind his computer!!!
In this way, by putting down the people who he truly admires, he feels like he is getting revenge to all those people that hurt him in his life.
Sad, i know, and of course i don't know this guy or if his life was really like that, but i bet it was along those lines.
ONE FINAL NOTE: THIS IS NOT TO SAY THAT EVERYONE WHO GREW UP LIKE THAT BECOMES THIS WAY - so please, i don't mean to offend anyone who didn't have a perfect childhood- (my life was far from perfect too).. i'm just trying to make a point. Everyone's coping mechanisms are different, and this guy just happens to have really bad ones, in combination with bad character.