Unreal IRCD and like IRCD's have modes qaohv o can't kick a and a cant kick q. the respective prefixes are ~&@%+ but alot of servers remove the ~& prefixes but qa still exist and have the same effect. if you are op and don't want to try and kick qa because you can't and modes ~& are removed it wont work. So using $nickmode is much more advantages to use when making such scripts. Wish I knew it existed sooner..