this seems to be a reoccurring theme on these boards, if a player shoots someone and it's not for profit, then it must be to cause grief.
that is simply not true. i've played eve-online for years, both as a carebear, and a PvPer. now eve is well known for its griefers, but what you might not know is there is also a very large community of PvPers who are not griefers. in fact if you head out to lawless space where it's effectively open PvP you'll be hard pushed to find a griefer.
you see PvPers love nothing more than to have a good scrap then laugh about it after. sure sometimes the loss might hurt, and they will just drop a "good fight" in chat then go lick their wounds, but they will laugh about it later. other times the fight might be so good that they start chatting with their enemy right away. if a newbie wanders into this dangerous zone and gets blown up and stops to talk to the "evil pirates" what they will invariably get is a ton of advice and help on what to do next time.
you see these players are not out to cause grief, they are out to have fun scrapping. if you go into an open PvP world in any game then you have to assume there will be people there who just want to have fun scrapping. not to cause you misery, but to enjoy a fight.
and no they will not pick a honourable or fair fight. they will run away when the odds are against them just as they will give chase when the odds are in their favour, because it's all fair game in open PvP (ok, sometimes they will run when the odds are suspiciously in their favour as they might suspect a trap).
if you get to a place where you accept that just undocking means you might never dock in that ship again then the open PvP world can be a lot more exciting than the controlled NPC world.
you see when an NPC interdicts you, it can be quite a boring affair, it's either a fed or a bounty at your feet. when a player interdicts you then suddenly you might be fighting for your life, hammering the boost button as fast as you can praying the FSD will spool up in time.
in short PvP can give you more of an adrenaline rush than an NPC ever could, that is why it's a great thing in such a game and that is why i play open (unless an outpost is full *mutters*)
what we really need is some way to chat after the fight. that is how communities form. it's no good being able to chat during the fight, take your finger off the stick and you might just as well hit self destruct. we need the ability to talk after the fight when one player is in station a few jumps away.