I think the key to making this work without censorship is ruthless downmoderation of low quality, uninterrsting, and annoying discussions. I am often hesitant

I think the key to making this work without censorship is ruthless downmoderation of low quality, uninterrsting, and annoying discussions. I am often hesitant to downmod but this is the tool that we have to shape the culture. If enough of us who care about having nondogmatic discussions start downmodding the situation might take care of itself.