I don't think the threat is internal though - not from their citizens. Its external groups - basically, pirates. I don't see how weapons laws will protect them against pirates. Indeed in their FAQ they allude to the fact that citizens will have to be armed to resist the more amateur pirates. More serious operations they hope to resist through not having enough worth taking. That is a more dubious line of argument but in either case I don't see how having or not having weapons laws will really protect them.
Recently the relatively awesome entrepreneur invested 1.25 million USD into this (seasteading institute website here).
It seems such a wonderful concept, finally somewhere where new forms of government could be tried out. But I'm just wondering how in the world they hope to deal with existing governments since their reaction to any kind of serious alternatives, especially one that either economically or ideologically presented a significant challenge, is bound to not be positive.
I was just wondering what LWer thoughts are on this matter? Also has there been any discussion of seasteading in the past that I've missed? Also I'm wondering if anyone would hazard to perhaps offer a prediction or judge how likley this is to succeed (maybe on predictionbook)?