People clearly haven't been on a long night gaming session of Xbox Live. We 'cuss' and 'insult' each other all the time. And its hilarious! If you took everything someone said to you to heart, then you are the fool, grow some tolerance people.
When it comes to the racism part, ummm hello? We're all racist? The English are racist to everyone, the Scottish are racist to the English, the Irish are racist to the English, the Welsh are racist to the English.
Point is, we're all racist, we just don't admit to it. If you can put up with insults and racism in real life, you surely must be able to in a virtual community.
As Jeremy Clarkson, who himself admits he was picked on as a kid, as an adult he thanks them! It helped him develop a thick skin and be able to use clever and/or colourful remarks about life.