I think your plugin works great. However, when in “Sort by Author” mode, it displays all users’ names and that feature cannot be turned off. We do not want any users’ names displayed ever regardless of the users’ role. In other words, we want to be able to turn off the “Sort by Author” mode for both pages and posts. In addition, as further support of this request, I would like to point out that the “exclude page” feature does not work in “Sort by Author” mode. Until you can add the ability to turn off “Sort by Author” mode, I don’t feel that we will be able to use your plugin.