Re: [EAI] Thinking about requirements / downgrade

[Shawn Steele <Shawn.Steele at microsoft.com>]

> so xn--yao at cnnic.cn  has a lot of meaning. you might not see such name in your life, but you can not prove that it might be there.

Of course any string might be used, but the probability seems low.  An administrator could also prohibit it (sure there could be a display glitches for EAI clients).  If we were concerned about xn--, it could be q.-_. or something instead.  (Sure, that could also be in an address, but this is stretching it a bit).  I don't think this need block us.  The risk of breaking a very few addresses is small compared to the functionality that is gained.

Again: I'm only (re)proposing this as a last-resort fallback, not to replace a human friendly alias.

- Shawn