add_action( 'bp_ready', 'custom_buddyboss_media_disable_akismet' );

/**
 * Disable Akismet.
 * BuddyBoss Media plugin add photo links in activity content and because of that Akismet plugin
 * mark activity 'spam'.
 * the Following function will disable the use of Akismet while posting media.
 */
function custom_buddyboss_media_disable_akismet() {
    if ( isset( $_POST['pics_uploaded'] ) && ! empty( $_POST['pics_uploaded'] ) ) {
        add_filter( 'bp_activity_use_akismet', '__return_false' );
    }
}