Well I personally don't think there is anything that can be done to help against people who use programs - (unless they admit to it - then their rating should be removed or something)

For people that "sit" on their standings when they get so high - well 30 days to complete a game seems like a short time since all it takes is the other player to purposly play slow. But maybe after lets say 90 days... that would make more since. (Or possible rating lower on "paper", but when a game is finished, the old "correct" rating is once again put in place.)