>Very poor support for east Asian and right-to-left languages
>Actively suppresses some special characters like zero-width non-joiner, even if they are copied and pasted. (Same with Sticky Notes.)
>Does not properly sync formatting
>Does not properly preserve formatting
>Lack of regard for very popular non-American standards like the Metric system, A4 papers, day-first dates, east European writing conventions
>Underfeatured in comparison to what we already have.
>Does not save notebooks to disk; only online. Hence, not suitable for business.