I agree with John. W101 should keep the measures in place and play it safe. I've played the game and can honestly say that the chat filter is somewhat annoying, with no being able to use numbers. But aside from that the chat filter is completely tolerable.

It doesn't block bad words, it just only allows recognized words. So you can't say "sh!t" in place of "shit", because "sh!t" isn't a word that is in its dictionary.

There is no real way to avoid the filter, so it is very effective. There are plans to use a similar filter in FreeRealms, as I understand it.