[frnkng]

It may not be uncommon in some regions of Bavaria/Austria to directly communicate negative emotions. It is also not uncommon to personally insult the person who caused the negative emotions.

In those regions the feedback scale is shifted as follows:

1. No complaints: Good work done

2. Minor insults: acceptable work delivered

3. Heavy insults on personal level: delivered work should be enhanced

4. Person stops talking to you: delivered work is insufficient

[konradb]

Why do you think the culture is this way? It does not seem optimal.