I mean this punctuation mark: !
I've been puzzled recently by the use of the exclamation point in German. I recently received a message from a work colleague using a couple of exclamation points at the end, which made him sound angry. And we also got one from our landlord, though in this case he had nothing to be angry or excited about; he was just clarifying some of our Nebenkosten.
My work colleague implied that it has more to do with being definitive than being angry, perhaps along the lines of the triumph emoji:
So: What do Germans mean when they end a sentence with an exclamation point (or more than one)?
Examples as requested:
I have written back and I really do not like to fight with you about the simple things any more!
I took this to mean that my co-worker was angry, but he said he just meant it as an expression of "firmness" or something. (He's Swiss, not German, if that makes any difference.)
Das ist für ein ganzes Jahr berechnet und verteilt sich aus gesamthaft 300,-€ anteilig auf
[us] = 170,71 u. für [our neighbor] = 129,29€, ergibt somit 300,-€ Gesamtbetrag!!
Mit freundlichen Grüßen:
[landlord]
I don't think my landlord is angry here, but I wasn't sure what to make of these exclamation points.