Arthur Gay

<p>This plugin allows user to know if his username is available while typing. No further need to hit the “submit” button to check username availability. Each times the user types a character in the username textfield, an ajax request is send to a php script which check username availability.</p>
<h3>Credits</h3>
<p>Images by Pixel Mixer – www.pixel-mixer.com</p>


Live username availability checking

A plugin for live username availability checking.

wpyb

<p>To prevent that usernames are publically visible, the username in the author’s permalink is replaced with the author’s ID.<br />
In case the page is invoked with the default permalink structure, it is displayed “Page not found”.</p>
<p>Additionally it is possible to modify the author base. It is recommended to make use of this plugin to change it, but it also works with other plugins that have the functionality to customize the author base.</p>


Change Author Link Structure

To prevent that usernames are publically visible, the username in the author's permalink is replaced with the author's ID.

Live username availability checking vs Change Author Link Structure