Funny. The first thing that came to my mind when he was first mentioned
was: "Who's Hank Aaron?"...

I can vouch that I know a lot of people who know what NetHack is and
play it. I can also vouch that I am certain no-one I know has ever heard
of "Hank Aaron".

The world is bigger that the USA, and outside of North America, not a
soul knows any baseball heroes by name, except maybe for Joe DiMaggio,
but him only thanks to Simon and Garfunkel...

Where have you gone, Joe DiMaggio,
Our nation turns it's lonely eyes to you.
What's that you say, Mrs. Robinson.
Jotting Joe has left and gone away,
Hey hey hey.

Happy hacking,

Boudewijn.