I am not and was not advocating for venting - just for communicating emotion. This can be as simple as:
“Your actions have deeply frustrated me and caused great anger on top of [technical reasons]. I would ask that you be more careful in the future.”
This ensures the reader not only understands they hurt Linux with their actions but also another human being. Many people will be more careful if they know they caused personal pain to an actual human being and not just to an abstract technical object such as a codebase.
I know I am going against established cultural norms in western business context - please don’t disregard my proposal just because it contradicts established culture.