bbPress.org

Put this in your child theme’s function file –

ie wp-content/themes/%your-theme-name%/functions.php

where %your-theme-name% is the name of your theme

or use

Code Snippets

add_filter( 'bbp_get_reply_content', 'rew_add_class' , 10 , 2) ;

function rew_add_class ($content, $reply_id ) {
	$content.='<div class="frenchlemans">I’m superman</div>' ;
return $content;
}