Path exclusion/whitelist

I have deleted all unused images! Works great!
One suggestion/request. Users may have unreferenced images that are being loaded dynamically. In this case, those images will be deleted. Solution: you could add a pattern/folder exclusion, so that in case there’s a match, these images won’t be deleted.
For instance I am using a subfolder “Banners” in the “Uploads” folders; given the exclusion list “uploads\banners” all images in this folder won’t be deleted. Your thoughts?