PC is against free speech, and is probably the greatest threat to freedom we have at present.
If you don't allow folk to express their thoughts, they fester, and become more polarised, they are then so much easier to be recruited as terrorists etc... if they express them, others have the chance to argue against them and repudiate them.
Interesting when government "bans" something, its censorship. However, if EVERY corporation makes the same policy it isn't censorship. In the end, you are forced to do something or abstain from something because someone else said so. Interesting the corporations have become greater authoritarians than the government - they play by less rules, have few if any regulations, and can do a LOT more "against the people" than government.
Still, people trust corporations and not government, even though government (in theory) is of the people and serves the people and has rules on how it operates - while corporations (in fact) are of the few, for only itself and serves ONLY those who own it.
edit - i tried to explain both sides with a sense of neutrality.
Corporations are the new Cesar and government is powerless.
However, there is a reason that you don't have unconditional free speech (anywhere), because freedom OF free speech also includes freedom FROM free speech. Some people might want to say something but i have the right to not hear it, so if i make the rules then obviously i will violate the free speech of a flaming racist so that i don't become offended.
This part of MY free speech, is backed by my own responsibility to hold some form of ethics about time and place (rhetorical situation) and audience (anyone who can hear me). And in order for me to expect to hold others to THIS rule, i had better follow it myself. So, do we have free speech on the internet or in civfanatics?
Well, you have the freedom to "speak within the boundaries set by the administrators" who need to maintain a neutral environment that is minimally offensive when it "has to be", and maximally enjoyable where it "can be", meaning they can't allow a hostile environment.