Aren't we mixing two different issues here? How we represent the node name within TS (within the XID structure) and how that node name is presented to users/administrators? Our top priority has to be data consistency in the presence of failures. If that means that a sys admin either can't do something for a while (because, say, a centralised name server that maps int node names to a nice string is unavailable) or has to work with ints, then I'm prepared to consider that any day over the alternative.