I have seen that advise before given by famous authors and editors. While not all words are just words. Such as words at attack a person. "Swear words" turn into an almost sacred things which anyone has the instant right to be offended by. Most things called "swear words" are just the bias of previous generations leaking into our world view. Remember it is also not right to question authority. My issue is that by not using "swear words" we give them more power over us.

We should be working to remove their sacred status. Words that dare not be said are dangerous.