Comments on the Unicode Codepoints and IDNA Internet-Draft

[Frank Ellermann]

Stephane Bortzmeyer wrote:

> Characters never harm. And are never "hostile" despite what
> protocol-03 says. What will come next? Terrorist characters?

There is a reason why many code points such as "mathematical
fraktur capital B" or "black-letter capital C" are disallowed.

"Hostile" IMO describes it good enough, nobody needs fraktur C
in a domain label.  Otherwise IDNAbis could simply permit all
code points above u+7F, and let punycode transform them to LDH.

 Frank