It would be great if the tool could automatically tell me if I have any layers that I don’t really need to have (or even just give me an option to check for them). Especially when I’m working with a component or starting from a previous design, I often end up with “extra” layers that aren’t doing anything except cluttering my file. They don’t have any backgrounds, strokes, or spacing applied, and there is usually already another layer that is maintaining the auto layout or grouping needed.
Trying to go through and clean them up on my own takes a bit of time, and many users often don’t even bother. It can then lead to issues finding the correct layer to adjust an auto-layout or remove a style.