hey_it's_that_dog
benevolent sexism
And this is exactly why everyone needs to keep reminding this guy that he's an asshole... Don't let up because that would be too easy on him, we actually have a chance to teach someone a lesson here, with the focused power of internet rage just maybe maybe maybe he won't be able to weasel his way out this time.
It would be great if it were that simple but I don't think it is. Having dozens or hundreds of people harass him for being a dick to two people will turn him into the victim, not the violator. He's more likely to conclude "Fuck tha haterz" than take an honest look inside himself and have an epiphany. Also, the "reminders that he's an asshole" would need to take a certain tone to be effective and not dismissed out of hand. They certainly won't.
I maintain that forcing him to change by ruining his economic prospects, which is what has already been done, is the best route.
If the guy is just an asshole by nature, then his personal life will dole out the punishments for that and the internet really needn't get involved.