I really don't want the Guest user on my computer even if it allows Find My Mac to work or whatever. Deleting Guest > Find My Mac for me.
I want to be unable to login to Guest with the only way to restore it being a complete reinstall of the OS.
I've tried 'rm -rf /Users/Guest', dscl . delete /Users/Guest, and tried putting random things into the Advanced Options for Guest under Users & Groups, but the Guest account still works.
I'm using FileVault so the Guest account is Safari only and requires a restart.