[yorwba]

[4] was interesting to read, but he doesn't actually show how his name should be written and what it looks like instead. So I'm left to wonder whether it's like the example of ত (Bengali letter ta), ্ (Bengali sign virama) and ‍(zero width joiner) combining to yield ৎ (Bengali letter khanda ta). That shouldn't be a problem for end users, if keyboards and rendering engines correctly implement the Unicode standard. That is no different than other combining marks required e.g. for accented letters in Latin alphabets. (In this case, the committee apparently determined that khanda ta was different enough to warrant it's own encoding.) I don't think Unicode needs to deal with the question of how the standardized characters will be entered. (Emoji input isn't standardized either.)