Hi chamindadxb,
The First Name, Last Name, and Display Name fields are an essential part of the registration spam protection that the plugin provides.
I’m not sure why you want to turn these off…these are the same fields that are included in the wp-admin/user-edit.php and wp-admin/profile.php pages of your WordPress Dashboard. If you’re really serious about having real human users register on your site, you would want them to fill these out anyway, especially because the user would need to fill these out before actually using any features of your WordPress site, such as commenting, writing posts, etc. Having new users fill these fields out when registering (as opposed to later on) is a proven method of helping to make sure only legitimate human users register on your site, and is one of several methods this plugin uses to prevent human registration spam. (Automated bot registrations are all stopped automatically by different methods.)
The only way to turn these off on your site would be to deactivate the plugin. I completely understand if your site’s particular needs require a different set of features than this plugin provides. If you need to use another plugin instead, you’re always free to do that.
I hope that helps.
– Scott
