My guess (given his lack of proper english) is he's referring to the per share rate in the last 24 hours being less than it was for the same # of block solves in shifts a day or two before. 14452 paid more per share for 13 blocks than 14486 which also had 13 blocks in his screenshot.
Which is obvious, and there's even a news post on BTC Guild, and a forum post explaining it: Shifts were increased from 2.5 billion to 3.25 billion shares. That means when a block is solved, it's split over 25% more shares, meaning the payout per block is 25% less. But, it also lasts 25% longer, meaning on average a shift will find...wait for it...25% more blocks. It ends up being the same damn number you moron.