Possible that Deepbit is redirecting some of its hashrate and the pool op is lining his pockets with unreported blocks? kinda explains why they've had bad luck recently
my thoughts too!
Deepbit stats are analysed to death. For instance by organofcorti:
http://organofcorti.blogspot.be/2012/03/21-deepbit.htmlIt would make absolutely zero sense for Deepbit to steal a few 50BTC blocks and risk their pool altogether when they are making over 2000 BTC per month in fees without cheating.