It’s not entirely subjective. For the majority of languages with a `let` keyword, it creates a binding which can’t be reassigned. JS is the only major language I’m aware of that breaks this expectation, and uses `const` instead.

In fact, I had assumed Sabre followed the more common pattern, and was quite surprised to discover it doesn’t later in the docs. I think that’s a pretty clear case of “bullshit” in the sense described in the README.