Everfluxx

<p><strong>Follow My Links</strong> is a very simple plugin that prevents WordPress from automatically adding a “rel=nofollow” attribute to the following two categories of <strong>authorial links</strong>:<br />
1. links in the <em>post author</em>‘s comments;<br />
2. links to the <em>post author</em>‘s URL (usually linked to from the comment author’s username).</p>
<p><a href="http://www.everfluxx.com/follow-my-links/" rel="nofollow ugc"><strong>Read the full documentation at Everfluxx.com!</strong></a></p>
<h3>Donations</h3>
<p>If you like this plugin, feel free to <strong>donate a link</strong> to <a href="http://www.everfluxx.com/" title="www.everfluxx.com" rel="nofollow ugc">my blog</a> or <a href="http://tinyurl.com/followmylinks" title="Donate with PayPal" rel="nofollow ugc"><strong>buy me a slice of pizza</strong></a>.</p>
<h3>Feedback</h3>
<p>Please do send me your feedback via this <a href="http://www.everfluxx.com/follow-my-links/#respond" rel="nofollow ugc">comment form</a>.</p>


Follow My Links

Do not automatically add the rel=nofollow attribute to links in authorial comments, strip nofollow from links to the post author's web page.

LukaszWiecek

<p>The “Smart DoFollow” plugins lets you automatically give DoFollow links to authors of comments that are longer than a given number of chars. You can reward the authors of long comments with strong links that have SEO-value.</p>
<h4>My other plugins</h4>
<ul>
<li><a href="https://wordpress.org/extend/plugins/social-slider/" title="Social Slider" rel="ugc">Social Slider</a></li>
<li><a href="https://wordpress.org/extend/plugins/socialfit/" title="Social Fit" rel="ugc">Social Fit</a></li>
<li><a href="http://commentify.info/" title="Commentify" rel="nofollow ugc">Commentify</a></li>
<li><a href="https://wordpress.org/extend/plugins/thank-you/" title="Thank You" rel="ugc">Thank You</a></li>
</ul>
<h4>Translations</h4>
<ul>
<li>English – <a href="http://tomasz.topa.pl" title="Tomasz Topa" rel="nofollow ugc">Tomasz Topa</a></li>
<li>Polish – <a href="http://mydiy.pl" title="Łukasz Więcek" rel="nofollow ugc">Łukasz Więcek</a></li>
</ul>


Smart DoFollow

The "Smart DoFollow" plugins lets you automatically give DoFollow links to authors of comments that are longer than a given number of chars.

Follow My Links vs Smart DoFollow