I see a lot of mixing of the ideas of "freedom of speech" which Starman addressed admirably, and society's view on whether or not certain speech is acceptable.
This web site has seen a lot of the latter, defensed by the former. Rude remarks, unseemly poetry, obnoxious behavior... all of which could be viewed unacceptable by the PIP society. When these breaches of social contract were admonished, the usual reply was "Freedom of Speech, this is America isn't it?"
The right to say something is completely different than whether or not that something should be said. Oft times, the laws of the nation do not run the nation, it is the culture of the nation that runs the show.