Comment Long Time Sealander, First Time Caller: AMA (Score 3, Interesting) 43
(N.b.: I have visited Sealand on countless occasions, was involved in HavenCo, and know the Bates family.)
Urbina's Atlantic snippet is nothing more than a compilation and rehash of information long available in the public sphere. I hope his book has more original research than exhibited here: he's an excellent investigative journalist.
The secret to Sealand's longevity is a combination of the British sense of fair play and tolerance of eccentricity; combined with the Bates family's ability to stay on good political terms with the government of the day. Compare that to the massive overreaction of the Thai navy earlier in the year against a seastead off the coast of Phuket.