Robin W

This plugin for bbpress adds fields to the bbp user profile.
The web administrator sets up the field names, and the forum users populate their details.
<ul>
<li>Many sites would like to have the forum user’s location, so city and state, or country can be set up as fields</li>
<li>On a gaming site you could fields like favourite game, platform, level achieved, highest score, favourite character.</li>
<li>On a diet site you could let users have target weight, diet plan, weight lost so far etc.</li>
<li>On a film site you could have favourite film, best actor, film genre.</li>
<li>Or on a golf site you could have handicap.</li>
</ul>
In fact any pieces of information that your forum users might want to display.

bbp profile information

For bbPress - adds fields to the bbp user profile and displays any combination of these under the authors avatar in topics and replies

dFactory

<a href="http://www.dfactory.eu/plugins/bbpress-notifications/" rel="nofollow ugc">bbPress Notifications</a> allows you to automatically send email notifications to specific users when new topics or replies are posted. It integrates seamlessly into WP, by adding new section to bbPress settings page, where you can configure your notifications.
For more information, check out plugin page at <a href="http://www.dfactory.eu/" rel="nofollow ugc">dFactory</a> or plugin <a href="http://www.dfactory.eu/support/forum/bbpress-notifications/" rel="nofollow ugc">support forum</a>.
<h4>Features include:</h4>
<ul>
<li>Send notification when New Topic is published</li>
<li>Send notification when New Reply is published</li>
<li>Specify email addresses for notifications</li>
<li>Design email templates with a number of shortcodes</li>
<li>Available shortcodes: [blogname], [reply-title], [reply-content], [reply-excerpt], [reply-url], [reply-author], [topic-title], [topic-url], [topic-author]</li>
<li>.pot file for translations included</li>
</ul>

bbPress Notifications

bbPress Notifications allows you to automatically send email notifications to specific users when new topics or replies are posted.

bbp profile information vs bbPress Notifications