The way you describe it that one was perfectly one of that "boom-headshot" fraction (decent description). Seeking for action on their screen. They dont care about settings or roleplaying, perhaps they dont even know about it, and for a moment they spoil my fun trying to roleplay - then I usually just set them on ignore (temporary, like I do most of the time).
I try to level up my char for backing up claims, and meanwhile I tend to duel instead of text-fighting. In fact this can be arranged well with roleplaying.
What I cant see is, why is a PvP-area required at all, if people are meant to have fun and play in agreement _with_ each other. People play their chars roles, they want them to fight each other, so they do. PvP-areas are for attacking others without them having the chance to agree or disagree. If people would stick to the idea of a roleplaying game, why was there a system that allows to act against other people's will? To me this is merely an action-feature to attract people not caring about roleplaying.
Point is, PlaneShift is a game either for roleplayers _and_ for "headshot-people", everyone is welcomed equally. PlaneShift is _not_ a real roleplaying game. I for one am not pleased about this at all expecting a roleplaying game, and I think its a shame, since I am convinced it drives away roleplayers, but at the end I cant but have to live with it.