Quote Originally Posted by masamuneehs
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This is indeed very important.

What comes to previews, I see no reason why they shouldn't be allowed to be discussed. They are parts of the released, subbed episodes. Maybe there are people who religiously never watch them (I don't watch them if I have the next episode already on my HD), but you can't please everybody. And besides, it's not like the preview normally would even be the focus of the discussion.