Fansubbing appeals to a limited segment of society. Yes, it is piracy if using a strict definition. But since no one else is offering these shows to people who want to watch it, there is no real economical loss to the copyright holder. The shows I have looked at has all been horrible in their translation, so I turned it off in less than 10 minutes.
Seppuku to be truly efficient should be a voluntary act, enacted in front of your peers and superiors. In those cases were seppuku was ordered by superiors there was always doubts as to their true motivation for the act.