Hi there!
I too really like the plugin, and interested in using it in my multisite site. I tried it on both multisite as well as single site. It worked seamlessly on the single site, but on multisite looks like it does not.
On my multisite, it showed the button, and I followed the process of deletion but user was not deleted.
It would be awesome if you can provide some direction on how this can be deployed for multisites ??
Thanks once again for developing the plugin!
Best.