It's irritating. I found that Taiyuan people really don't have the quality of feeling ashamed of themselves.
It will be a little uncomfortable to see such a thing, but don't rise to the quality of Taiyuan people. As far as I know, there are such people all over the country. There is no hidden place in a busy place, so it is not easy for you to see it. People with poor quality are everywhere, not only in Taiyuan, but also in developed places.