Hi, I'm testing your plugin to see if it would work for our site and I noticed that the "Delete unverified users" feature doesn't seem to do anything. I've checked with the WP Crontrol plugin, and it doesn't even have the "user_verification_delete_unverified_user" event setup. This is even after manually setting up the feature and clicking the save button.

Welcome to PickPlugins
Please make sure the option is enabled for delete unverified users and then go to plugin list and deactivate plugin first and then activate, this way it will try to regenerate cron if not exist, you can also install advanced-cron-manager plugin to check crons
https://wordpress.org/plugins/advanced-cron-manager/
Also please note WordPress crons may automatically turn off in various situations, make sure it keep running from your server, Please follow this article
https://www.hostinger.com/tutorials/how-to-fix-wordpress-missed-schedule
Hi,
I have tried those steps and have not been able to get the Cron task to show up or activate. Cron is enabled as I have other tasks that I can run, and other tasks from your plugin do show up.