Yeah. Same attack can deal different amount of damage depending on your enemy's mood. So making an insult could deal great amount of damage on a stressed person but would be useless if the person is calm. Apologizing is good against certain attacks but useless against other atacks.
At first we intentionally hid the amount damage each attack deals (and each defense negates). By the time I realise that it's too hardcore and the system logic is hard to be guessed with a few plays it was already too late :)