The filter helps prevent swearing but of course there are ways around it, they should also be punished regardless if it gets out of hand and the cursing is used as an insult.
It's true as you say, many people will continue to avoid the filter. Instead of caving to their demands wouldn't it be better to simply continue punish them for breaking the what they know to be the rules?
I'll admit though, I personally don't believe cursing in general, not directed at somebody, is wrong. With this being said, this is a game for children and these are the rules. Nobody is forcing you to play this game just like nobody is forcing you to agree the rules, but regardless you should follow them.
I don't see a 'kid friendly option' likely at all as aforementioned, this is a game for children, this game how it currently stands is infact the 'kid friendly option' what you're suggesting sounds to me more like an option for older audiences. By all means though, continue to rally for a toggle to be implemented, it's your right to do so. I just don't see it likely in the slightest judging from responses by ace and anero.
fyi: the statement at the end is a joke referencing how you often post long threads with slabs of information; rants. It's not an insult
