I particularly like the idea of 'hellbanning' - trolls aren't blocked from the site, but their posts are made invisible to everyone but themselves. So there they are, starting threads, posting inflammatory replies etc and gradually starting to wonder why everyone is ignoring them. Eventually even the thickest, most persistent troll would give up. A very effective way of enforcing 'don't feed the troll'.
No, I'm definitely not expatinscotland - she's still around under the same name, afaik. There are a few of us around with expat-related names, but I think we're all generally different enough (posting styles, topics we hang out on) that it shouldn't be too confusing most of the time. I hope not, anyway.
Like this idea too. I get so fed up of posters troll-baiting and getting deleted and then investing time and energy into their threads too. It would be lovely if this was already in action on known trolls starting threads and being ignored.