The official EA response is:
Q: How come my story keeps getting filtered?
A: Your story contains text that does not pass the EA or Sony/Microsoft profanity filter, you can edit your story to change the text so that you are not being filtered.
Now I know EA doesn't publish their filter because well... they aren't going to publish a list of profanity. I imagine it's the same with Sony/Microsoft. It's an issue with the company wanting to remain politically correct.
There is a thread in the teambuilder part of this forum where people were discussing actual player names that are being filtered out. If I find it I'll edit this post with a link to it.
Jeez it was a sticky right at the top of the page.
http://www.operationsports.com/forum...-censored.html