Realistically it depends on how invested I am in the system. If it's something that I'm using all-the-time, it absolutely makes sense for me to have a deeper un

Realistically it depends on how invested I am in the system. If it's something that I'm using all-the-time, it absolutely makes sense for me to have a deeper understanding because that understanding could save me time and give me a better perspective on why certain aspects of the system are the way they are. If it's something I use only as an auxiliary system, I don't invest as much time in understanding the system, only what the system can do for me. A prime example of understanding how to use the system, but not the system itself is e-commerce. There are 17+ year old kids making 100K+ a month with e-commerce, having no programming skills or a deep understanding of the web or computers. They are experts at the tools they use, but honestly are not "computer" people. We've abstracted e-commerce to the point that it's not even necessary to deeply understand the web, with tools that exist now (Shopify etc.)