Assuming we implement bug 39558. That means the counter in the corner of the save dialog will be decreasing more than 1 per character on average.
English users will likely not notice it as quickly, but € (EURO SYMBOL) for instance is 3 bytes. And in foreign languages it will be more common entirely.
Right now the counter has no unit, which would be confusing (the natural expectation is to assume character count). We can add a unit word "# bytes" instead. But I'm not sure that is an improvement, do we want to face users with that?
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=4715