Jesper Johansen (jayjdk)

<p>Twitter Profile Field is a simple WordPress plugin that gives the user a new field in the profile page to add in their Twitter username.</p>
<p>The pluhin also provides a shortcode which allows authors to display their, or others, Twitter usernames, optionally with a link, in posts, pages, and text widgets.</p>


Twitter Profile Field

Adds an additional field to the user profile page where the user can enter their Twitter username.

Trân Minh-Quân

<p>This plugin lets you change user’s login username. It changes user_nicename as well so that your author link will correspond to your new username.</p>
<h3>Languages</h3>
<ul>
<li>English</li>
<li>Français</li>
<li>Swedish</li>
<li>Vietnamese</li>
</ul>
<h3>Credits</h3>
<p>Translators:</p>
<ul>
<li>Erik Billerby: Swedish</li>
<li>Igor Oliveira Ferreira: Brazillian Portuguese</li>
</ul>


WPVN – Username Changer

50% of the entire code circles around "level_can_use", i.e., role/level-based authorization, which has been deprecated many moons ago.
Additionally, it only allows to rename your own username.



Outdated & Limited

This plugin lets you change user's login username. It changes user_nicename as well so that your author link will correspond to your new username …

Twitter Profile Field vs WPVN – Username Changer