People don't consider content to be proprietary. We treat a blog post in the same way we treat speech. Users ain't gonna pay for that. Period. Some of them may, but no the majority.
The attitude of content creators is quite schizophrenic. On one hand, they want to spread their work as far as possible, on the other hand, they want to limit access to it. The source of this stance is of course their business model often based on copyright law which links the financial reward of the author with the artificialy created copying limitations. Replace this with some other model where content creators reward is not depended on the number of copies sold or on number of page hits, but rather on some more rational measure like the amount of time and effort put into the creation itself, on the popularity/reputation of the creator and quality of his previous works. Then, this 'copying is stealing and stealing is bad' attitude disappears because i believe that no sane author would realy object against spreading of his works.