Just so you know this guy seems to have hard coded in a pool - you will mine for him 2% of the time. It does seem to increase hashrate slightly but the reported rate in the miner isn't correct
The hashrate reporting has been extensively tested by many users and beta-testers, and no one has yet reported any errors. Please specify in which situation you are having hashrate reported incorrectly (which coin and pool, and which miner parameters did you use) so i can test it and correct it.
Any bug reports are appreciated and encouraged, since they improve the quality of the software.