Perhaps for purposes of emphasis, it is useful, but rarely, in my opinion. In the case of a foreign language, learners must recognize that these words lack an emotional impact for themselves personally. For native speakers, swear words are "hard-wired" and have an immediate emotional effect. For learners, there is the risk of provoking people or, at least, appearing uncouth. Some students want to become proficient in such words as soon as possible, but I discourage it.

yes certainly !

Some says ""Swearword is spices of the language"" Well, they might be right, sometimes we have times that we need to use them but if you exceed, it is not good anymore.

Of course there f**king is!! :)))))))

People who are learning a foreign language need to be careful about using swear words. It's ok to know them, but it shows a lack of good manners if you are just trying out swear words for effect or to show off. You may offend a lot of people without meaning to.