Re: [Idna-update] Expiration impending: <draft-klensin-idna-rfc5891bis-01.txt>

[Asmus Freytag <[e-mail]>]

On 3/8/2018 11:37 AM, Andrew Sullivan wrote:
> On Thu, Mar 08, 2018 at 02:11:21PM -0500, John C Klensin wrote:
>> On the other hand, the same kind of thinking  that argues for a
>> "troublesome characters" list (at least as I've understood it)
>> -- more "you SHOULD NOT use these unless you are extra-sure you
>> know what you are doing and what the implications might be" than
>> any sort of absolute prohibition -- might imply a similar
>> statement about combining sequences.
> That actually doesn't seem like a terrible idea to me.  Of course,
> that was _supposed_ to be the point of the general exhortation to have
> a clue about the code points you were putting in a zone.  And that
> doesn't seem to have panned out :-/

A general exhortation ("know what you are doing") is too vague to be 
helpful.
Something on the level of what I just sent out as "recommendations" for
safe use of combining marks is much more specific and actionable.

I think it might be close enough to something that could become part of an
enforceable policy.

A./
>
> A