It is interesting, I think! For me, I feel like I contain a lot of contradictions, so having labels other people can recognise to try to explain is useful. Something like that. Of course, to really describe someone, you sort of need a big pile of all of them. One of the reasons I like Caroline Myss's system of archetypes, since everyone has twelve of them and it's not just a single all-encompassing label for a big group.