* @param bool $ignoreHidden Whether to ignore the effects of $wgHiddenPrefs
* @return string|array|int|null User's current value for the option
* @see getBoolOption()
* @param bool $ignoreHidden Whether to ignore the effects of $wgHiddenPrefs
* @return string|array|int|null User's current value for the option
* @see getBoolOption()