If you have a WordPress site with lots spammer registrations, this plugin will delete any user who has never had a post or comment approved.
I've just used this plugin on a live site which gets lots of spam user account registrations.
The plugin allows you to do a 'dry run' so you can see the user accounts it has identified as spam and run some manual spot checks to make sure there are no false positives.
After that, rerun the check and delete them for real.
A great time-saver. Props to the author.
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