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,...

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Thursday, March 17, 2011
How to Allow Duplicate Comments in Wordpress.org
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