Does anyone else use a horizontal bar instead of an umlaut in German?
It depends who was to read it 😉 When I just scribble something for myself, I often use bars as some sort of shorthand. Just laziness 😛 But if someone else has to read it, it’s not such a good idea. They probably could guess it, but it’s certainly not usual. Looks like some sort of font-slang, and it shows the writer is real lazy and inconsiderate for the reader