That guy doesn't *have* to go to Sotheby's. That guy can simply walk away with all the money. Members of the DAO are trusting this guy with their entire collective treasury. Indeed, since the DAO has no corresponding legal entity, it might even be that members of the DAO can't sue this guy if he steals all their money - and even worse, without a limited liability structure, it might mean that everyone in the DAO can *be sued* for anything bad this guy does with the money.
5/
