There are only three tiers of snub PvPers, though, and these are easy to predict, especially if you spend some time in Conn, where the upper two show themselves. There are the ones that don't PvP frequently, those that try to do it frequently and those that are knowing what they do. It's really not hard to put people into these categories if you watch them fighting a few times, and those you don't see fighting are often the ones that are at the bottom of PvP skill. Skill comes from training.