There really isn't a logical argument for forcing this filter on people. Make it an option (which can be on by default when the game is first installed) - everyone shouldn't have to pay because a few people are sensitive to written text. I'm generally against taking away the freedom to choose from people.
Seriously, this mandatory chat filter is pretty ridiculous. We're playing a WWII game full with constant death and swearing for a start.
We all have huge e-weiners and I'm going to make damn sure you smell my huge stinky one.
EDIT: I'm surprised some people actually consider in-game shit talking to constitute some form of post-traumatic stress. I thought this game was for adults? Build a bridge and get over it. It's written text from someone probably halfway across the world. If words over the internet impact you so much then you will never be happy and I don't know how you get on in the world. And people stop making this into some political 'anti-discrimination' thing. People are assholes regardless of background. No I'm not being 'insensitive' I'm being realistic.