There are 3 options if a Russian calls you like that:
>he is a dumb peasant that should be avoided
>you've done something bad to him (it might be not obvious for you, and it's the most common reason)
>he is joking (amoral humor is on the rise)
I think there was hostility towards Georgians in USSR and '90s, but nowadays, I haven't heard anything bad which is funny because even Armenians, Azerbaijanis, and North Caucasus folk don't have such a decent reputation. And yes, many Russians know Georgia as a cool tourist destination where many people speak our language, would they come if they hated you?
The truth is hidden behind the fact that we hate each other. Whether you are Russian or a foreigner - you are asshole men ))))