To be clear, I think either position is fine. If you want control over what people say that's okay - but maybe then you should be accountable for what they say like a publisher.

If you don't want to be accountable for what people say, that's fine - but maybe then like a traditional common carrier you shouldn't get to control what people say.

The asymmetry of "I control everything you can say but am accountable for none of it" is wrong, in my eyes.