[SoftTalker]

> if any binary has setuid set, it runs as root

More precisely, it runs as the file owner. Which is often root.

[kayodelycaon]

For anyone thinking this is unnecessarily pedantic, it’s not.

I didn’t exactly know what setuid did. I learned something today. :)

[vbezhenar]

You might also research what setgid bit on directories do, it's useful sometimes.