But in Julia it also makes code a pain to write outside of a Julia aware IDE. Even in such an IDE I now need to remember what the shorthand for Euclidean division is to type it. (It would be great if I had a toggle that could switch all unicode for which there is a shorthand to the shorthand...)

Not saying the trade-off isn't worth it, but I do feel like there is a tendency to overuse unicode somewhat in Julia.