If that is the case, why not use your english-based domain name to write to those who speak English and use the IDN where people speak another language?
Why? Why can't you just come to terms with the fact that internet has grown up and become global, and it's time for you to wake up to the fact that domain names now can contain more characters than it used to?
And as I said, the domain name has nothing to do with the content.
There's no such thing as "english" domain names, of course.
This new standard has come to stay. Deal with it.
Foreign charcters has nothing to do with spam. In fact, most spam I receive seems to be from the US and Korean based "businesses". Fix your laws, please.