I used to use an e-mail address a terrific domain name that I own. Without publicly disclosing specifics, it was like this:
@.com
Thousands of people with this name, who didn't want to give out their real e-mail address, used this e-mail address when signing up for things online. They probably never thought it would be someone's actual address. I finally had to quit using it because of the tremendous amount of e-mail that wasn't directed at me. Most of it looked legit enough to the spam filters to allow through.
I temporarily turned that account on about 5 years ago and it was getting about 3,000 garbage messages per day.
I thought having a cool e-mail address would be great, but not any more. I switched to an address that, while easy to say and tell people, it's very unusual and it's very unlikely someone else would ever come up with it.