lol, superman will NEVER be in the public domain. if the families didn't care about it, DC comics would certainly never allow it to slip from their control. the IP's the biggest money maker for the company.
i suspect, unless their is major changes to copyright law, IP's will never slip into the public domain ever again. the creator's or their families will want to milk their work for as long as they can, and find loopholes to prevent PD.
I mean Tolkien's work should be public domain by now, but his son will never allow it.
I don't understand why you people are opposed to NYT wanting to make money off of its own content. Every website has the right to find a way to monetize its product. If it fails, it's because people decided not to buy it, not because erecting a paywall is some sort of work of grand villainy as you make it out to be.
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