How to Allow Duplicate Comments in Wordpress.org

How to disable Duplicate Comment filter. when a comment is posted second time wordpress shows a error "Duplicate comment detected; it looks as though you’ve already said that!". How to remove this ??

There is a simple trick to do it. go to "/public_html/wp-includes" through ftp and locate comment.php file. Right click view/edit,

find

// Simple duplicate check
// expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content)
// $dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND comment_approved != 'trash' AND ( comment_author = '$comment_author' ";
// if ( $comment_author_email )
// $dupe .= "OR comment_author_email = '$comment_author_email' ";
// $dupe .= ") AND comment_content = '$comment_content' LIMIT 1";
// if ( $wpdb->get_var($dupe) ) {
// if ( defined('DOING_AJAX') )
// die( __('Duplicate comment detected; it looks as though you’ve already said that!') );
//
// wp_die( __('Duplicate comment detected; it looks as though you’ve already said that!') );
// }

just delete and save it. that's it from now on you can post the same comment again and again.

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