I don't want to change the topic and get this thread closed. They do have a right to close it and limit what we can say.
To clarify, no it does not. This is a private forum and they have the right to limit anything anyone can say for what ever reason they want. That is their first amendment right. The First Amendment limits government censorship of free speech (specifically the Federal government). After the passage of the 17th Amendment state governments also have to abide as well. Since this is not the government, they can censor you if they feel like it.
ETA: Even in public your speech rights are limited as well. You cannot go into a public place and yell fire. You cannot go onto a plane and yell bomb.
Um whats the 17th Amendment have to do with Freedom of Speech? According to my research it has to do with rights of Senators:
"The Senate of the United States shall be composed of two Senators from each State, elected by the people thereof, for six years; and each Senator shall have one vote. The electors in each State shall have the qualifications requisite for electors of the most numerous branch of the State legislatures. When vacancies happen in the representation of any State in the Senate, the executive authority of each State shall issue [ame="http://en.wikipedia.org/wiki/Writ_of_election"]Writ of election - Wikipedia, the free encyclopedia[/ame] to fill such vacancies:
Provided, That the legislature of any State may empower the executive thereof to make temporary appointments until the people fill the vacancies by election as the legislature may direct.
This amendment shall not be so construed as to affect the election or term of any Senator chosen before it becomes valid as part of the Constitution."