each "swear" word has its own connotation and definition, right? synonyms, too. so, while it's far too easy to misuse a word, there are still contexts and circumstances that call for certain words because they are what's correct, and appropriate. I don't mean appropriate in terms of how "good" or "bad" a word is, but if you're describing an elephant, it would be inappropriate to describe the elephant as "tiny." It is appropriate to call the elephant "large."
However, that's moreso touching on appropriateness in terms of accuracy, but hopefully you catch my drift? In literature especially, there is a time and place for you to use each and every fucking word in the english language. It is apparent when words are superfluous, and really do nothing to enhance a sentence's tone or idea. Profanity is no different, and it is entirely true that an excess use of profanity conveys a lacking vocabulary as much as excess use of any other word or groups of words.
"Fucking Tom brought his fucking dog to the pet store and tried to buy all the fucking dog food."
Yeah this guy is probably very upset complaining about Tom, but:
"Silly Tom brought his silly dog to the pet store and tried to buy all the silly dog food."
Either way, all you can gather about this guy talking about Tom is that he's pretty overzealous in describing what Tom was doing. It doesn't matter which adjective you use, all tone is lost if the sentence becomes less of a construction and more of a pattern of words.
basically, profanity should hold no more water than any other word to determine it's use. Language is meant to be colorful, diverse, but most importantly, understandable. Using each and every word as they're meant to be used, succinctly and without excessive wear, are the building blocks toward expressing clear and prominent ideas. I hope I aptly expressed what I wanted to, but if not, fuck all y'all