This is the very definition of "super user" at some of the financial institutions I've worked at: someone who knows the traps, pitfalls and quirks of a highly c

This is the very definition of "super user" at some of the financial institutions I've worked at: someone who knows the traps, pitfalls and quirks of a highly complicated and fragile system that _mostly_ works. And they get paid commensurate to this scarce but very useful "skill".