This plugin allows you to disable or enable wordpress users.
I have been searching to find a plugin that can help me ban and unban user this has given me a great and simplest alternative.
Though it can be improved so that the user can see a message as to why they cannot instead of blank screen login.
How I currently use this is to send the user manual e-mail of their ban.
You must log in to submit a review. You can also log in or register using the form near the top of this page.