Because the prepubescent kids all of a sudden grow balls and say all kinds of stuff they otherwise wouldn't say in real life. The problem is that they don't know how to talk to a female. In real life they're probably quiet and shy and very loser-ish.
Before you comment on one of my posts, please research the Dunning-Kruger effect and really think about what you're about to write.
The only time I've noticed a girl playing is when they have an obvious username like "Miss Killer" or "I AM GIRL ON XBOX", but even then I've not noticed any in-game trolling or verbal abuse towards them. On the other hand, I can't see all the personal messages they could be getting, which I'm guessing amounts to a lot of the trouble.
most of these kids that troll the girlies have never had one. on a side note; there was some girl playing the other night that had the foulest mouth i've ever heard. she was as bad as most of the squeakers i hear. i couldn't believe some of the **** that came out of her mouth.