That's why Yahoo made the point of blaming a "state-sponsored actor". You would expect a giant tech company to be able to defend itself against random hackers, but what if it was the government of Russia?? That's why Sony Pictures blamed North Korea for what was, in the opinions of security experts, the work of an insider.
Now say, you took out a mortgage and came up with 5 million dollars. Another 100 people don't have any dollars, so they would like to seize your 5 million dollars with a patch. There's a clear majority vote to take your 5 million dollars. Should they be allowed to do that?
Thanks for the link, I didn't know people were doing this. I had only seen EthereumClassic, which seems prone to attack, and a nightmare for exchanges.
Google doesn't demand anything. If your paywalled website is not accessible by Google's crawler, then Google will not index it. Publishers want Google to index their pages and drive potential paying visitors, which is why they open the loophole themselves.
For the second point, Google does require that publishers specify "registration required" in their sitemap.
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