Michael Snow wrote:
Requirements like that (the US used to require a copyright notice) have been stripped away as an unreasonable burden on authors.
I don't think that that was the reason. The publishers would be the ones to make sure that the notice was there anyway. Like abandoning the requirement that registration was a precondition to copyright protection, it was a consequence to acceding to international treaties which demanded that copyright vest automatically in the author. The author could not lose his rights out of ignorance.
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