There is a network of roamers spread out over many servers. Many of us have been in the same guilds and roamed side by side off and on over many years. We move around to different servers but kept each other on our friends list. As far as "avoiding" one another in a 1v1, sometimes it is out of mutual respect when we see one another out in the field, and other times it a situation when your like "oh, forget that guy, don't got time for that". Lol