public static function activate( $signup_ids = array() ) {
		if ( empty( $signup_ids ) || ! is_array( $signup_ids ) ) {
			return false;
		}

		$to_activate = self::get( array(
			'include' => $signup_ids,
		) );

		if ( ! $signups = $to_activate['signups'] ) {
			return false;
		}

		$result = array();

		/**
		 * Fires before activation of user accounts.
		 *
		 * @since 2.0.0
		 *
		 * @param array $signup_ids Array of IDs to activate.
		 */
		do_action( 'bp_core_signup_before_activate', $signup_ids );

		foreach ( $signups as $signup ) {

			$user = bp_core_activate_signup( $signup->activation_key );

			if ( ! empty( $user->errors ) ) {

				$user_id = username_exists( $signup->user_login );

				if ( 2 !== self::check_user_status( $user_id ) ) {
					$user_id = false;
				}

				if ( empty( $user_id ) ) {

					// Status is not 2, so user's account has been activated.
					$result['errors'][ $signup->signup_id ] = array( $signup->user_login, esc_html__( 'the sign-up has already been activated.', 'buddypress' ) );

					// Repair signups table.
					self::validate( $signup->activation_key );

				// We have a user id, account is not active, let's delete it.
				} else {
					$result['errors'][ $signup->signup_id ] = array( $signup->user_login, $user->get_error_message() );
				}

			} else {
				$result['activated'][] = $user;
			}
		}

		/**
		 * Fires after activation of user accounts.
		 *
		 * @since 2.0.0
		 *
		 * @param array $signup_ids Array of IDs activated activate.
		 * @param array $result     Array of data for activated accounts.
		 */
		do_action( 'bp_core_signup_after_activate', $signup_ids, $result );

		/**
		 * Filters the result of the metadata after user activation.
		 *
		 * @since 2.0.0
		 *
		 * @param array $result Updated metadata related to user activation.
		 */
		return apply_filters( 'bp_core_signup_activate', $result );
	}