It wasn't referring to the specific identifier "it" here, but more in general as I took your point to mainly be about "if there's a benefit to using other values for X in other contexts", meaning that putting things into variables only serves the functionality of reuse in different contexts, not also to name passages of code.
But I don't understand your point in bringing it up here.
> "It is not worth doing," she said, [it=foobar]
`it` is neither a descriptive identifier, nor did I see a suggestion for what the function `baz` could be called to make it descriptive.