there are a lot of players who like the idea of an optional pvp ruleset.
There a a hand of MMOs out there which had a nice optional pvp system.
But at the moment, vanguard has either forced pvp or PVE only
The RvR servers donīt allow you to chat with the other side and your group options are very very limited. One of the two faction is missing the paladin class, perhaps they will get inquisitor eventually i donīt know