Ismail

<p>Does the same functionality as BuddyPress, emailing users who get mentioned in a bbPress topic or reply. The aim of this plugin is when to enable that feature when no BuddyPress is there.<br />
To do: – warn user about bbPress/BuddyPress presence</p>


bbPress Mentions Email Notifications

Adds the @mentions to bbpress - really useful

Great plugin

Email bbPress topic/reply mentioned users, set custom email and some basic settings

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Outdated & Limited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 …

bbPress Mentions Email Notifications vs WPVN – Username Changer