First of all, this is a great plugin. It actually killed two birds (co-authors and guest authors) with one stone for me in setting up a new WordPress site.
I noticed that this plugin registers 4 new image sizes seemingly for potential guest author avatars. Unfortunately, this is happening for all the media I upload, resulting in thousands of images that will never be needed.
Is there a way to turn this feature off in the plugin, or to only have the plugin create the images for guest authors that may very well need an avatar?
Thank you for your time.