Technically it would be, but it's kinda hard for a lot of the older members of the forums to convert to "not cussing". Also, note that a lot of the mods and admins cuss as well. We're aloud to cuss, but with reason. Therefore, it's pretty clean the way it is now.
Plus, this place, even though Pokemon's thought of to be a childish game aimed for "little kids", the strict policy here and stuff kinda suggest that this place is for more mature, probably older people, as, from what I've seen, younger kids tend to spam a bit more (if not a lot more) than the older, more mature people. So hopefully we're not influencing anyone.
Also, the only place where you'll see cussing daily is probably if you go into the chat a lot. As in a lot. And even there, I don't spot a lot of cussing, unless it's Alex who's trying to piss me off.