Let's be honest, ability lixs do not cost a lot, 500 gold a lix? Some noob runs up and kills mobs because he thinks it's funny/he wants to level. I don't think there's any reason to blacklist those newer players, it sets a bad example for the clan keeping the blacklist
It's not the fact that they ruined the lix. It's the attitude that some of them take. All they have to do is wait a few minutes. If they find it amusing to KS lix, I'd personally prefer they find another, more liberal, server to do it on. The problem with this younger generation is too much tolerance and not enough *** whippings. Personally, I'd prefer a button that allows me to slap the s*** out of them through my Internet connection but, until that magic button appears, I'll settle for a "game over" list.
Bitey is right about the hour it takes to get them all over three stars too. It's a real PITA.