Removing spam registrants

[ctgraham]

If you can generate the list of users, you can use the mergeUsers tool:

How do I combat SPAM?

There are a number of configuration steps you can take to combat SPAM and other forms of malicious registration activity on your site. CAPTCHA/ReCAPTCHA Configure a CAPTCHA and enable it for user registration, notifications and commenting. We strongly advise using Google’s ReCAPTCHA (https://www.google.com/recaptcha/intro/). (Older OJS 2 versions include a PHP captcha, but that has proven to be less secure than ReCaptcha.) If you are using OJS older than 2.4.8-3, you will not be able to use t…