"Wow, you can't type ANY form of lamebook.com, lamebook DOT com, lame+book DOT com...NOTHING! How can I trust Facebook as a messaging system if it's going to block entire words and phrases?!? What if I just wanted to ask my friends what they think about the Lamebook case?? WTF"
This would be like if I asked you for examples of which sites were banned, and you couldn't even post to tell me.
I can't imagine using the new FB mail for my communication if FB will censor the crap out of it.
So there is no reason to censor messages themselves.
It's called database access, and every CTO has it, ultimately. That said, I doubt there is a big red button sitting like a blank check for the CTO to nuke phrases that contract his sphincter. That said, what the hell do I know?