Hello David Judah,

Thanks for reporting on this, i have applied some fixes in your file
JoomlaFolder\components\com_easydiscuss\themes\pinter\frontpage.post.php
LINE 77

<?php echo $this->loadTemplate( 'post.badges.php' , array( 'badges' => $post->badges ) ); ?>	

Replace with

<?php echo $this->loadTemplate( 'post.badges.php' , array( 'badges' => $post->user->getBadges() ) ); ?>	

Sorry for make you inconvenience.