Please take into account that English is not Harald's (nor my, for that
matter) first language. It's already hard to be polite when one's angry, but
it's all the harder in a foreign language.
English isn't my native tongue either. Sure, some of what I write will offend people because I am not expressing as clearly but I don't think that is the situation with Harald. He has been moderated quite heavily which is fairly unprecedented in Fedora lists because he is a repeat offender and continues to behave rudely in several mailing lists he has been subscribed to. He has been asked many times to moderate his language and he should pay more attention to it instead of claiming that is the only way to express anything. Aside from that, being so emotionally invested in pointing out some corrections isn't very healthy. Cool off and do something else