On Wed, Sep 03, 2014 at 08:35:24AM -0400, John C Klensin wrote:
> > 
> > I don't see any case in those two strings.  What am I missing?
> 
> That applying ToCaseFold(fußball) yields "fussball".

Yes, I know.  But this is sort of my point.  If the matching behaviour
of those two strings differ because of _case_ treatment, it's a recipe
for user puzzlement at best:

"Oh, that's because of case folding."

"Um, it's all lower case?"

> I would question the "deep tradition" because, in reality, it
> applies only to the ASCII repertoire, i.e., a subset of the set
> of undecorated Latin characters.

Yes, but surely for someone German it's handy to be able to use
CamelCase to make strings somewhat more memorable, and having it work
when the string has no decorartions and not work when there are
decorations is, at least, hard to understand.  The only responsible
advice in light of IDNA2008, in my opinion, is, "Use domain names are
in lower case, always."

Best regards,

A

-- 
Andrew Sullivan
[email protected]

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