If Vod tells me that he will negatively rate me if I don't do what he says, that was changing my rating, I see that as a threat.
I would see that as a threat too. Luckily I never told you that.

Your private message to me:
Ah. I have made it neutral. You have made yours negative. Once of us will have to change it. :/
This is direct threat. "Do that or I do this" -threat. Your message means the following: "You have to change your rating to neutral or I will negatively rate you". Do you agree? If not, where am I failing here?
You gave me permission to publish that private message.