Shouldn’t the fact he’s using it and likes it be proof it exists and not a substitute tool?

In addition to his workflow, I want to add that I really appreciate having the parameters and types displayed when calling a function or method. Sometimes it’s unavoidable asking yourself questions like “which way round are those arguments?” or “is that a signed/unsigned integer?” Sure you can look at the code behind the function you want to call but having the IDE prompt that saves you navigating away from the code you’re currently writing. That’s a massive win for me. Particularly for projects that require less active development