Where is that number coming from? Pirate "had" 5 million and that sam was covered all over bitcointalk, reddit, and everywhere else people talk about crypto. If this was almost half the size of that everyone would know about it, not 1 thread on the altcoin section.
Even if true, that's not really big enough for the people who deal with shit like this, and the best part (for admin anyway) is that no individual put in enough money on their own to make hiring lawyers/PI's to investigate him/collect worth it. Pirate had double that number, and was stupid/cocky enough to meet people in person and let them know exactly who he was, and where he was. A totally different situation from an unknown guy in an unknown part in a huge country on the other side of the planet.