My Girlfriend uses my account to play online occasionally and its horrible. The Call Of Duty crowd are the worst. As soon as she speaks a word it is just hateful/sexist messages and remarks via voice and inbox. She will only really play if she's in a party with people we know now. Shame that people have to be so mean online that they cause people to change their gaming habits.
Smart move. Should just pick and weed out the haters and create your own party where the players are respectful, mature, and graceful winners and losers. It's safe to say now that the online gaming world is training society's new generation of Frat Boys.