Is it correct to assume that dragons represent an extreme hard case?
After all, dragons can speak human languages, generally have whimsical or curious personalities, tend to think long term/big picture, and appreciate amusement. Although humans may not understand dragonkind, dragons do understand humans enough to know when humans are begging with a proper amount of deference.
So we could reasonably interpret this rule in a way that somewhat accords with both Mistwell and Joe B.: the dragon case represents a case where there is a large power differential, but the opponent is both knowledgable and reasonable (and not insanely aggressive). If those modifiers are not present (say, with a lawful evil extraplanar creature who knows nothing of humans except they are at its mercy), then the check can be made much more difficult. I think lack of a common language or set of signs should result in hefty penalties to diplomacy checks.
I think diplomacy is a useful enough skill as it is. As my group learned when a street fight erupted in front of the city guard: you don't have to persuade them to love you--just to dislike the other people more.
After all, dragons can speak human languages, generally have whimsical or curious personalities, tend to think long term/big picture, and appreciate amusement. Although humans may not understand dragonkind, dragons do understand humans enough to know when humans are begging with a proper amount of deference.
So we could reasonably interpret this rule in a way that somewhat accords with both Mistwell and Joe B.: the dragon case represents a case where there is a large power differential, but the opponent is both knowledgable and reasonable (and not insanely aggressive). If those modifiers are not present (say, with a lawful evil extraplanar creature who knows nothing of humans except they are at its mercy), then the check can be made much more difficult. I think lack of a common language or set of signs should result in hefty penalties to diplomacy checks.
I think diplomacy is a useful enough skill as it is. As my group learned when a street fight erupted in front of the city guard: you don't have to persuade them to love you--just to dislike the other people more.