It is pretty stupid, I mean honestly you can tell what someone means by context about 99% of the time anyway so what's the point in trying to "filter" it? That and I agree with the statement that RT is not a game that tends to be G or even PG13 rated when you get a group of what passes for adults in modern culture playing it. Like any censorship you have to ask, who is this protecting and from what and for who's benefit? When you think it through the answer is almost always a fucktarded load of nonsensical crap. That being said it's not going to go away, because of what Fantasy Flight produces as a business they ultimately will jump through whatever hoops they have to in order to present a "kid friendly" enough image not to lose access to a potential part of the market.
I think it's also because they've got the one censorship filter for their whole smegging forums and that they have several game lines aimed at younger audiences. Easier to just have the one blanket filter over all of their message boards rather than giving each board a filter tailored to that game's tone. Probably cheaper, too.