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The way the message is delivered isn't grounds to censor the speech. The content of the message, is.
I used US law as an example on my first post, but then, US law isn't the only one nor they have the monopoly in "freedom of speech".
Censoring something because they don't like the "bad words"... wait, don't Russia
do that? As in, you know, perfect examples of freedom of speech...
And yeah. It's your freedom to be a dick, as long as you're not threatening or insulting other people (and in fact, even in those cases, there are situations and situations). There are a lot of ways of being a dick, not just using profanity.
I could talk about someone's style, or clothes, way of speaking, with a malicious intent and being a bastard, and no one would be able to do a thing about it. They might criticize me in return, but they can't just report me to the police or a judge can't outright censor what I've said; even if this causes the person serious emotional distress that I don't like their yellow shirt and their hairdo (as long as I don't attack them via their race, religion, disabilities, sexual orientation and such, I'm fine).
In fact, fashion magazines do it all the time and they sure are abrasive sometimes.
Because remember, freedom of speech is all about the government taking action against you, or it censoring your speech outright. What others do, as long as it's legal, there are no problems with it. And just for your information: no, insulting or threatening other people isn't legal, no.
But then again, everyone has the sense to present opinions better than in the post we're talking about, in real life.
Actually, you're pretty much mistaken here. Many opinions, if not most, in this planet are presented with "fuck" and "shit" in the middle, or their variants in the specific languages. Just go outside and see people talking about football or politicians. Or talking about anything, for that matter.
People use profanities and vulgar language in their every day lives. In fact, pick the post about Miyuki, change the name and the "onii-san" part and you just got a template for a talk about girls IRL (and I've seen similar templates being used by girls to talk about other girls, btw).
Also, it sounds pretty much hypocritical to me that you complain because he used "fuck" and "cock" in a post while being abrasive about a fictional character and then you go straight to call him, and anyone that agrees that he has the right to do so as "dicks".
And again: be careful of what you wish, as it can be turned against you. Now you limit his free speech by negating that right ("it isnt' freedom of speech"), the next day, it would be used against you, just saying.
I'm tired of seeing examples of that IRL. Usually, those who want to remove "malicious/offensive/profane speech" from the internet or press are those that want that only their own speech to remain on it. They start with Jews, they continue with Communists, they end up with you.