Actually, I didn't break any promise to the person. Since I never told who he/she was. He/she just asked me to tell noone else he/she said that.

So I think I didn't break any rules in my opinion. And I didn't break my promise to him/her. However. It's pretty clear who he/she is now. I think people should just be honest. And say what they think. However, not all admins/moderators seem to like that.