But when you clutter your
message up with personal feelings and negative emotions, it taints that
message and the end result is you will not be heard.
First, because an angry message, especially directed at another user, will ensure that that user will NOT listen to what you have to say. It only ensures that you will put them on the defensive which means they have closed their mind to the possibility of your viewpoint.
Second, because the post will get deleted and not seen by ANYBODY.