shawfactor

This plugin allows the following you to configure the backend new user screen to incorporate the following features
<ul>
<li>Optional use of email addresses only instead of username and email.</li>
<li>Optionally hide the new user url field</li>
<li>Optionally allow you to specify whether an email should be sent to each new user or not</li>
</ul>
These changes make adding new users to WordPress a lot faster.
One word of caution is that IF YOU USE EMAL ADDRESSES ONLly the plugin replaces the username with the email address of the user when a user is saved in the database. meaning your users will no longer have a separate username.
Check out <a href="http://lhero.org/plugins/lh-email-registration/" rel="nofollow ugc">our documentation</a> for more information.
All tickets for the project are being tracked on <a href="https://github.com/shawfactor/lh-email-registration" rel="nofollow ugc">GitHub</a>.

LH Email Registration

Streamlines user registration in the back end by allowing administrators to remove redundant fields and replaces usernames with email addresses

Adam Walter

Admin Notice is a very simple plugin that allows you to display custom notices in the WordPress admin that is visible to all users.
Control over the notice text and styling is available from the plugin’s settings page.
Developers can use the <code>admin_notice_enable</code> hook to control the notice’s visibility on a more granular level. The following example demonstrates how to show the notice only in the “Posts” area of the admin.
<pre><code>add_filter('admin_notice_enable', function($enabled) {

 $screen = get_current_screen();

 if (isset($screen->post_type) && $screen->post_type !== 'post') {
 $enabled = false;
 }

 return $enabled;

}, 10, 1);
</code></pre>

Admin Notice

Nice Plugin!

Display a custom notice to all users in the WordPress admin.

LH Email Registration vs Admin Notice