Is there a way to allow the reply link to remain on the comment form after I have reached my 10 nested comment limit?

I don't necessarily need nested comments I just need the reply link to be always available as I'm using a plugin that only sends out email notifications on a comment "reply".

1 Answer 1


If you need to modify the max depth, you could use the thread_comments_depth_max filter:

 * Set max comments depth to 15 on the discussion settings page
add_filter( 'thread_comments_depth_max', function( $max )
    return 15;
} );

then the dropdown on the discussion settings page will show the range 1 - 15.

But I can imagine very deep comment threads would be harder to read.

Another approach would be to override the thread_comments_depth option value on the front-end:

 * Set max comments depth to 15 on the front-end
add_filter( 'option_thread_comments_depth', function( $val )
    if( ! is_admin() )
        $val = 15;

    return $val;
} );

The reason why the reply links don't show for depths greater than the max depth is this part:

if ( 0 == $args['depth'] || $args['max_depth'] <= $args['depth'] ) {

within the get_comment_reply_link() function.

It's not possible to use the comment_reply_link_args filter, because it's applied after the depth check, for some reason.

  • "But I can imagine very deep comment threads would be harder to read."... couldn't that be solved with un-nested css styling?
    – Pete
    Jan 25, 2016 at 11:31
  • 1
    yes, that css might be a workaround. If the comment_reply_link_args would be above the depth check, then I think we could have a more dynamic depth and even change the max_depth per comment. @Pete
    – birgire
    Jan 25, 2016 at 11:34

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