The human racial Diplomacy is currently designed to grant a bonus 10% to reputation for players who choose that race. Unfortunately, with Warband reputations, this racial causes problems due its character-specific nature.
We don’t want players to feel compelled to play a specific character or race to earn Warband-level rewards more efficiently, so we will convert this race-specific bonus into something new. We’ll share more information on it at a later date.