I would like to point out that the one and only person who has actually been forcibly shut down and/or censored and/or prevented from saying whatever crossed his/her mind...
... is me.
And that was for crossing the line into rudeness.
So, be careful who you accuse of censorship and shutting down discussion, yeah?
Unless, of course, @notimp actually meant he found it "highly disturbing and in essence amoral" that I got moderated during one of my replies to him.
I am not discarding the idea, for all I know he believes in equal-opportunity blanket freedom of speech.