Yes the owner of cryptocoinbank pool has sold his miner to recoup losses but not walked away and still has the free 10 GH miner, cryptocoinbank pool has 1/3 of the hashing power of nastypool yet in the last 24 hours Nastypool has cracked 9 blocks and cryptocoinbank pool has cracked none. Not cost effective. The game is set to just about cover the running costs, so far approx 6 BTC has been withdrawn but I bet most of this is people taking the money out they ploughed in, not coins they've earned through the game. I don't see how anyone can do anything about someone quitting a "game".
I have nothing to do with the game other than being legitimetly interested in it as a fan and helping people, so I started an unofficial forum and wrote this post about how I think the game works and why some pools even with a third of hashing power aren't cracking as many blocks as your assume.
http://www.minerfarmforums.com/forums/topic/the-reason-pools-some-pools-are-hitting-fewer-blocks/I still think the game is in a sort of "beta" phase (although not officially) because it was only recently launched and still the admin is fixing some bugs and glitches. That said, we have no idea how the exact reasoning behind blocks being found in the game works but as you'll read in my post I believe it may have something to do with random number generators or die rolls.
So therefore we might expect a pool to receive 33% of the blocks based on a 33% hash power, but I'm thinking that each time a block is found that it really means they have a 33% chance of their number being generated in a die roll to win a block. I mean I don't know for certain, but it's at least an idea to work off of...