I don't think its the same at all. If I post on HN I have an understanding that the post is going to be on HN's system, and subject to the moderation of the si

I don't think its the same at all. If I post on HN I have an understanding that the post is going to be on HN's system, and subject to the moderation of the site owner. I have the same assumption of Facebook or any other online social service. What's happening in this circumstance is that another actor is going to be in the middle, with Facebook's cooperation and consent, and not mine. That Facebook has found a way to wash their hands of what they're doing here doesn't make it OK. That they're finding a way to remove themselves from censoring the posts directly shows that they know it's wrong.