I agree, kayakamina. And here's another reason why substituting one word for another is such a tedious idea: It forces us to read through our own posts once again AFTER we've posted them, to see if there are any "elbows" sticking out that need explaining.
"There wouldn't be any need for that, Swede, if you refrained from posting bad words in the first place!" I hear you say, Spare. Not so. Who could have foreseen you wouldn't be allowed to post about bitches in Animals & Nature, for instance... I believe that this has been corrected now, but you see my point: It isn't always self-evident what will be substituted and what will be allowed.
My own personal opinion: Let us swear all we want, as long as it's not intended to be abusive. But if you really feel that it's necessary to educate us on language as well as on manners, then please stick with the asterisks.