Due to BS I've been seeing more and more people rolling neut for pvp, as it "fix's" the problem of not having enough people on one side or the other.
You could argue that sides are for RP'ers and neut for pvp'ers.
Personally I play omni and don't RP at all, but the point could be made
Don't hate on the neuts though, how else we s'pose to check the other sides GMS ^^
Granted we aren't that's why we can't just walk in with the opposing faction xD