True. I apologize for coming off like a jerk. I should have provided more context, i was trying to highlight that contrary to what the OP wrote that is was irrelevant "they never show that the text was copyrighted."
I didn't disagree with the, "they never show that the text was copyrighted." But I did think it reasonable to point out that there is--in fact--a place to register your works for a registered copyright. You don't have to, but it does give you nice benefits.
I think it might just be bad wording. One of the requirements of notification for copyright infringement is to identify the specific instances of infringement.