Free speech is often misinterpreted as meaning "I have the
right to say what I want, wherever and whenever I want to say it." This is
incorrect. Just because someone publishes a
newspaper doesn't mean it's
censorship for them to decline to print your
letters to the editor; just because you have the equipment to
broadcast a
radio station doesn't mean it's
legal to
pirate any
FM frequency you like; and just because someone lets you have an account on a public
web site doesn't mean you can say whatever you like there and be guaranteed that it will never be removed.
What it does mean, however, is that you can print and publish your own newspaper, or your own web site, and say anything on there that you like, all without government interference. But it's ego to presume that you have the right to use someone else's media freely to speak your mind. Free speech does not mean you have the right to violate other people's property against the established rules.