Remove jcomments footer link

To remove jcomments link from the footer just look in file tpl_index.php (located in components folder: components/com_jcomments/tpl/default/tpl_index.php)

Search for "comments-footer" (liine 56)

<div id="comments-footer" align="center"><?php echo $this->getVar('support'); ?></div>

and either delete that line or comment it out.