It isn't really the anonymity of it though. I see people post dumber shit on Facebook than I do on message boards. This is why features like ignoring and muting are saving graces. Bungie.net seems to have a younger demographic than forums where picture threads are generally good-natured and encouraging, and that's usually who you'll find making those comments. It isn't just B.net either - anywhere a person can make a comment, there will be some unappealing language to both genders. I wouldn't worry about it, especially if you don't believe any of it.