I'm against banning, if we ban a troll from here it just moves on to another site and a troll another site has banned moves here to fill the space, most boards handle trolls in their own way, whether it's to ridicule them or to ignore them, many trolls, given a little time, start to interact with other board members and settle down to less trollish behaviour. The idea of the net should be freedom to interact with other people, if that interaction is sometimes unpleasant that's all part of life.