[hadoukenio]

> Almost all email moves between only a handful of companies. Google, Microsoft, Yahoo, Facebook, Apple

That's pretty naive. You need to step outside your comfy bubble.

Out of all the small businesses on the internet, how many of them are still running an email server under someone's desk?

And not to mention, what about all the client-side javascript out there that parses email addresses on web forms? Think about all those throw-away regexes to parse email forms on websites. I've seen a lot of them break just on these new TLDs - and they are ASCII!