You represent, warrant and agree that you will not engage in conduct or communication (written, verbal, or nonverbal) which could infringe or lead to infringement of any copyright, trademark, publicity or privacy right, or any other intellectual property or personal right of any person or entity, is threatening, bullying, defamatory, abusive, obscene, sexually provocative or suggestive, pornographic, or which in any manner could give rise to any civil or criminal liability under applicable law, constitutes spam, violates any local, state, federal or international laws or gives rise to civil liability, is a solicitation or advertisement for inappropriate conduct, commercial product or activity, violates or infringes any rights of third parties including but not limited to copyright, trademark, defamation or any other proprietary right, places an unreasonable or larger than normal load on the game or disrupts any performance of the game, is junk mail, imitation of being a company employee, attempt to obtain other players login information, attempts to hack or crack the product, or anything that the COMPANY regards as harmful to the COMPANY.
There are some really good discussions relating to freedom of speech on the internet.
I was actually reading a Harvard article on the topic recently:
https://cyber.harvard.edu/ilaw/Speech/
You can have "free speech" on the internet, at the same time you are using a private companies platform for that free speech.