To the user, the interface is the product.
When I'm hiring, I don't look for credentials, I look for knowledge.
You can never let your data dictate design. If you do, you end up following what people currently do and never innovating.
Never use a warning when you mean undo.
Design is the beauty of turning constraints into advantages.
Every time you make the user make a decision they don’t care about, you have failed as a designer.