Way I see it, the Japanese treat their entertainment as their culture, and they are fiercely protective of their culture! Anytime someone outdoes them with a foreign spinoff (like say Donkey Kong Country or the Sega Genesis in general) they see it as an attack! An attempt of appropriation. So for years, they had a habit of sabotaging their American counterparts to make sure that their homegrown Japanese version is superior no matter what. Might explain the cease and desist orders on fangames, too. Not really protecting their Copyrights per say, but protecting their superiority in content production. Cant allow those baka gaijin to think they have better ideas than us!