[broken-kebab]

I see what you mean, and in fact I'm sure it is an insult. However, sensitivity to it is still a matter of particular culture-time. Some cultures tend to consider such things to be an attack against someone's social status no matter what context. Others may take them as banter, or emotional coloring if you like.

Another example: Americans seemingly normalized public swearing using what was originally sex-related slang, while in many other cultures it is a very-very dangerous minefield. And let's not forget that the whole field at that time was orders of magnitude smaller, which implies less formal spectrum of accepted styles of communication.