On left/right free speech: Two data points: Free Dominion, Babble.
Care to make a conclusion?
You know, I think I have only ever posted to Free Dominion once, and it was many years ago. THey didn't ban me then, and I have never set out to test their boundary. I have posted to a few right wing blogs and sites where I was greeted with quite a bit of abuse, but nobody ever told me I could not speak. On the other hand I have been to a couple of right-wing religious sites where they pre-screened you, so obviously they are clamped right down. My guess it is a firewall they needed to put up in order to function in the face of torrents of criticism.
But I didn't intend my statement as an indictment of babble, and as I said, it is kind of a moot point if they (the right, I mean) let you speak, but don't listen. But from what I have seen conforming to doctrine and correct speaking is a bit more of an issue on the left than it is on the right.
Like I said, I think the lip service some on the right pay to libertarian ideals may be part of it, though the control others on the right have of media and other vehicles of information makes for a pretty strong imbalance.
But that is just my opinion based on what I have seen. It is off-topic, and I don't want to distract this thread further with it.