If you are a programmer, you are already using an editor. Who besides programmers needs to see hex dump of a file?

Sysadmins? Programmers who don't have their editor open and just need to quickly look at the contents of a file?

There aren't sysadmins today who aren't programmers.

> Programmers who don't have their editor open

Well... these aren't programmers. Maybe "aspiring programmers", as in someone who still have to learn how to use their computer. It's not anyone who would be considered a competent user.

What are you talking about? I use cat and less all the time when I'm working in the console. No need to switch tools when I want to take a quick look at the file.