Jezzy54 said:
Whoever harassed her over the phone is no feminist, even if they claim to be. That is exactly the kind of behaviour feminism is meant to fight against.
This is going to be a long answer, but I think it is important you understand exactly why that response doesn't work.
I think this reaction is exactly what the OP is looking for. You basically just said "not all feminists" to us.
There are a number of issues associated with feminism and gaming going around right now, and one of the biggest is the mass assumption of guilt of all gamers. Even if a gamer isn't sexist they still get the flak for being sexist. Right now there is a petition going around to shut down Steam for an hour in protest to the harassment Anita received. There are all sorts of problems with the idea, but one of the biggest is best shown in this quote from the proposal:
"If the games community as a whole refuses to police itself, we feel that games distributors and the industry as a whole should make some gesture strongly condeming this kind of intimidation."
Another quote from a different article:
"When you decline to create or to curate a culture in your spaces, you?re responsible for what spawns in the vacuum."
From Devin Faraci - "Gamers, you're like a dumb terrorist who blows himself up making his jihad video. Well done."
The general attitude is that because all gamers are part of gaming culture the gamers who are not sexist are responsible for the behavior of the gamers who are sexist. Because gamers "allow" this sort of thing in their culture gamers in general are responsible for the harassment. We are told to police our own. All self proclaimed gamers (members of the gaming culture) are responsible for the behavior of all other self proclaimed gamers because if we really cared we would prevent this sort of thing. We wouldn't allow it in gaming culture.
Some gamers, naturally, don't like this. They are being held accountable and, lets be clear here, attacked for the actions of some other anonymous persons they cannot possibly control. This puts a significant number of gamers on the defensive, which then try to defend themselves. It's like the #notallmen thing. Trying to defend gamers in general as not sexist (just that there is a small but loud percentage of us) is seen as proof of sexism.
So then a self professed feminist is acting like an ass. So the charge is made by these defensive gamers: Why can't you police your own? After all, by your own argument, a culture that allows this sort of thing is responsible for those actions.
Of course, neither side can control their extremist. It is impossible to do so. No one in the history of mankind has been able to do so. I am not sure why we suddenly expect people to be able to do so when the extremists suddenly have near perfect anonymity to hide behind. It is ludicrous.
That's the problem. Vast over generalizations and frankly stupid behavior on both sides has made this not a war about defeating sexism but a war about who is responsible for the reprehensible behavior of others. And that is just one small aspect of this whole debacle.