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  >> When legal tender cannot be used for legal transactions, there is a problem
  > Why? Something being legal for you doesn't make it compulsory for others. 

Because this undermines soverignity. Nation monopolizes violence. There can't be a private police with its own laws, that's a mafia. Once an entity has powers comparable to that of the nation it resides in, within few orders of magnitudes, that power must to be destroyed and transferred to the government of the nation.

Credit card brands has it.

[Dracophoenix]

In this case, the US government, as well as the governments of other nations, will tacitly impose its monopoly on violence against banks, processors, and merchants to ban content it doesn't like. So it was with Wikileaks, and so it goes with ero-manga. The only mafia are the ones prodding the credit card companies into a financial dilemma between legal liability and cutting off a market.

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VISA isn't doing it in compliance right now. It's doing its things using "global standards" as an excuse. That behavior is not democratic, and such functions need to be regulated out.

I remember seeing people debating who's the kingpin and where the orders are coming from, as it'll change which of anti-monopoly laws, financial transaction laws, trademark laws, outsourcing laws, etc. would apply or has to be amended.

Whoever it is, it's kind of obvious that the mafia isn't a US or European official government entity or employee. Last I've heard, people doing this research-activism seem to have largely excluded direct involvement of VISA Inc. in US as well as its Singapore subsidiary, and was poking around few specific VPs in VJA or something.