+ * Number of accounts each IP address may create per specified period(s).
+ *
+ * @par Example:
+ * @code
+ * $wgAccountCreationThrottle = [
+ * // no more than 100 per month
+ * [
+ * 'count' => 100,
+ * 'seconds' => 30*86400,
+ * ],
+ * // no more than 10 per day
+ * [
+ * 'count' => 10,
+ * 'seconds' => 86400,
+ * ],
+ * ];
+ * @endcode