If you consider command line as an interface, the number of people who just don't "get it" is huge. POSIX compliance and similar exist for a reason, and yet we

If you consider command line as an interface, the number of people who just don't "get it" is huge. POSIX compliance and similar exist for a reason, and yet we have garbage utilities where help, --help, -help, ?, -?, "", info, --info, $1 help, help $1, etc all exist and do effectively the same thing. "Power" users need love, too. Looking at you, systemd folk.