[gusrb84]

I have same issue! delete_others_replies work, but not delete_replies..

Temporary solution would be changing bbpress core (/includes/replies/capabilities.php)
from:

case 'delete_reply' :
// Get the post
$_post = get_post( $args[0] );
if ( !empty( $_post ) ) {
	// Get caps for post type object
	$post_type = get_post_type_object( $_post->post_type );
	$caps      = array();
	// Add 'do_not_allow' cap if user is spam or deleted
	if ( bbp_is_user_inactive( $user_id ) ) {
	$caps[] = 'do_not_allow';
	// Moderators can always edit forum content
	} elseif ( user_can( $user_id, 'moderate' ) ) {
	$caps[] = 'moderate';
	// Unknown so map to delete_others_posts
	} else {
	$caps[] = $post_type->cap->delete_others_posts;
	}
}
break;

To:

case 'delete_reply' :
// Get the post
$_post = get_post( $args[0] );
if ( !empty( $_post ) ) {
	// Get caps for post type object
	$post_type = get_post_type_object( $_post->post_type );
	$caps      = array();
	// Add 'do_not_allow' cap if user is spam or deleted
	if ( bbp_is_user_inactive( $user_id ) ) {
	$caps[] = 'do_not_allow';
	// Moderators can always edit forum content
	} elseif ( user_can( $user_id, 'moderate' ) ) {
	$caps[] = 'moderate';
	// User is author so allow edit if not in admin
	} elseif ( !is_admin() && ( (int) $user_id === (int) $_post->post_author ) ) {
	$caps[] = $post_type->cap->delete_posts;
	// Unknown so map to delete_others_posts
	} else {
	$caps[] = $post_type->cap->delete_others_posts;
	}
}
break;

But I do not want to touch the core. How can I update my functions.php file to do the same? (i.e. add_filter)

I’m very new to WP and BBP..

[gusrb84]

found temporary solution.

Fix 404 issue for bbPress 2.2.x

It fix 404 error