The thing is that social network representations require nuance. We can either try to solve the nuances universally (not going to happen) or try to figure out what problems we're trying to employ social networks in and figure out how to negotiate them there IN A CONTEXT. The latter is going to be far more successful. Haven't we already learned that each YASNS models a different social network anyhow (and no, FOAF is not the answer here because the different models are often because people are segmenting their networks differently in order to represent different facets).