Because I don't want annoying pk'ers, rwt'ers, account sellers and beggars. Why do you play an MMO than? Games like runescape are based of be who you want to be, so they have the right to do whatever they want, just as you do. You don't like it? Deal with it. I personally don't like people like you who whine about pkers, but hey i'm not exclaiming that, am I? You just did.