Swearing and made-up swear words

I listened to the Grammar Girl podcast's recent cast on swearing in Maze Runner and then read this one on swearing and I am having a debate now with my fellow teachers--is making up swearing still swearing? Can the kids in school say FRICKING instead of the F word and get away with it? When you are clearly substituting one word, changing one phoneme--isn't it the same thing? When Battlestar Galactica used FRAK, it's still swearing. So taboos aside, we are riding a slippery slope when the guy who creates SHUCKFACE does it on purpose to stay in a library when Salinger comments on the F word in graffitti in The Catcher in the Rye and gets kicked out of the library for doing it.