All in all, I prefer it when people just list their email somewhere practical to find and just learn how to manage their email. But hey, if you’re already successful and productive, and you’re upfront about not preferring email as a contact method, at least be clear about it.
Here’s Nicky Case’s contact page:

There are tons of FAQs here, which might cover why you are emailing them to begin with.
Then at the very bottom, you still gotta really want it to actually get the email address:

I love it. It’s useful. It’s personal. It’s funny. And it bet it works.