Am not sure if the question would really apply to your group. I noticed that after I installed Membership....later on the dashboard...suddenly there were over 1,300+ user?? Here are some of the names.
I tend to think that they might have been created by other plugins that I have installed/removed in the past. And fear removing them, thinking they might affect the functionality of the system/other plugins.
Just wondering if there is anyone else out there...who might have had a similar issue to this. How did they handle/fix this?