Why, because no one wants to go through 100's of users rounds and reimburse them. MrStickball originally ran the league but with doing the XBL sales thread and other life related things, he has ran short on time. None of the other mods seem to care about the prediction league other than Montana, but he only bets and never makes any comments about it, and ioi is busy as always putting the numbers together for you. I can't reimburse anyone or I would for the the really big mistakes (> $100).
I want the feature built into the next version of the prediction league so it is automatic with the click of 1 button. I also want to be able to fix mistakes in rounds (like my two examples above).