From archive.org mirror of old bug tracker.
When you anger Essiah by requesting aid too often, your charisma and fatigue points are given a sacred penalty. If you continue to do so, your charisma and fatigue penalties roll around such that you instead receive huge bonuses to one, the other, or both. They roll around at different rates, so if you continue for long enough you can achieve charisma bonuses of over +120 and fatigue bonuses of over +80.
Flagged as medium priority, considering that it basically allows you to cheat with wizard mode off, but does not prevent the game from being played.