Just curious, but do you think words like that would be fine to use in like... A press conference? A teacher to use in front of a classroom? During a large presentation? Not trying to be confrontational here, just genuinely curious, since your views on swearing are very open.
A teacher to use in front of a classroom?
Tell you what. I am a teacher. In Greece you are an adult if you reach the age of 18. Of course it isn't the age that makes a person an adult really. I have seen fourty five years old people acting like immature kids. But in general, I PERSONALLY believe that at the age of 20 you got a sense of what is right or wrong for you in a way, and you got used to be responsible for your words and actions.
That told, if my audience is consisted by people that ALL have ages above 20, I can swear just to be genuine. Some people feel uncomfortable. I CAN sense that, I apologize and use another word that will substitute the bad word. But what I got from my experience is that, since I am good at my job, people don't mind when I swear. They feel that I am actually honest and genuine. Not my thoughts or my perspective. I express THEIR opinion here.
So imagine a teacher that has built a friendly enviroment, you enjoy being there, you actually LEARN stuff, and suddenly you ask why something is the way it is. RATIONAL question because some things doesn't make sense at all.
My reply wouldn't be a sterilized politcally correct statement. Instead I would prepare the audience that the next few sentences would be my personal biased opinion. Then, knowing my audience that I express a PERSONAL OPINION, I would actually tell them why I believe that thing is a F**king piece of useless **** that they will hopefuly never EVER use in real life.
They always smile. Because they get genuine and honest raw feedback. I smile too. Questioning something like that, means they know already a lot.
When it comes to kids, I FEEL obligated to show how people should talk formally and polite. It is my duty. On adults, everyone is responsible for themselves. If someone gets offended too easily, too bad. I prepare the audience for profanity, I ask first if they DO want me to be genuine, if even ONE says no, I keep it formal, but when everyone says "No problem go on" I go on with no responsibility. It's just good manners to ask for permission to be genuine and vulgar.
On the other hand, using profanity to just "look cool" is plainly f@@king stupid in my opinion.
A Press Conference:?
It depends on what the Press Conference is about of course. I would love to shout "F#ck her right in the p$%%y" in a press conference, just to watch everyone's face afterwards. I will probably never do that though.

I am not chickening out, I just believe that a live PRESS Conference, or a recorded one, might contain or not kids in the room (due to my job) and people watching from their TVs might have kids around. So it is a NO! Since kids hate walls of text I hope they won't read this f@%king huge reply of mine.
During a large presentation?
Assuming you talk about adult audiences. Kids would sleep on a long presentation anyway.
On my Diplomatic, I used Clean Academic Language, no profanity. Didn't risk that. As an Academic you must avoid foul language and use correct expression skills and arguments to deal with conversations. I give you that.
But when it comes to a long speech on an adult audience, you can use a good manners technique to get permission for using foul language, then "wake up" the audience by saying something a little vulgar, just to draw attention. Also whoever is sleeping will wake up by the gossip on what you just said!
It depends on the Presentation. If you make a presentation about "Why God is Good, oh my GoooooooD" then you most likely will avoid profanity! If you sell something, or an idea, you HAVE to AVOID profanity by all means. If you are making a presentation of some arguments on why profanity is good or bad though, well a f@cking example is F@cking permitted to make your point. Example is one of the F2cking strongest teaching tools after all.