1. For versions below 1.5.3, some users may be marked as disabled after registration. To resolve this, go to "Users" > "Edit" > Click "Enable". This won't affect any Plugin functionality. For older versions, if bulk editing is required, you can directly edit the database. During the warranty period, you can seek assistance from the plugin author.

2. Due to limitations in the plugin package, it's not possible to include a list of complimentary usernames. However, users who purchase the plugin can contact the plugin author to receive 3000 usernames for free.

The functionality is demonstrated in the attached image.