It would be pretty difficult to get enough bandwidth and power to a place like Sealand. You'd probably need an undersea cable to have a big enough pipe to the I

It would be pretty difficult to get enough bandwidth and power to a place like Sealand. You'd probably need an undersea cable to have a big enough pipe to the Internet, and whatever country that runs to can cut you off... That, and if you're in international waters and you annoy a country enough, you probably don't have your own army or anything to stop them invading you.