The Polldaddy Polls & Ratings WordPress plugin is an easy way to enable readers to rate comments, either on a 5-star scale, or “Nero”-style thumbs up or down. However, it won’t work for adding ratings to comments if you use Thesis.
Fortunately, it is an easy fix. Just go to Plugins > Editor, then select the Polldaddy Polls & Ratings plugin from the drop-down menu and click the Select button. Below Plugin Files, click on the polldaddy/rating.php link. Use Ctrl+F to search for comment_text, which should take you to this line:
add_filter( 'comment_text', 'polldaddy_show_rating_comments', 50 );
Just replace it with this line:
add_filter( 'thesis_comment_text', 'polldaddy_show_rating_comments', 50 );
Click the Update File button, and your ratings should show up. Just remember that you will have to update this any time the Polldaddy Polls & Ratings Plugin gets updated.