I was today playing with a friend on a German server. DE 125 I think. At the beginning when we wrote with each other a massage appeared which said that something like "Only ASCII characters allowed 2 of 3 warnings." After some time we found out that this meant we weren't allowed to use ä ö ü. We were so into the game that we forgot it and wrote those letters again. When we expired the 3 warnings nothing happened so we continued writing the letters. Suddenly though I've been kicked. Because of the use of non ASCII characters. My main question is now why did this happen? Those character are essential to the german language and without them writing becomes a pain.