Since all players have a choice between open, private groups and solo I don't see a point to this thread. I personally don't have anything against ganking, it's an essential element in any MMO and one might say that it makes the game more challenging. Open, in the busy systems, is a hostile environment - I don't see a reason for this to change, when you can easily switch to a private group that doesn't allow ganking or play solo.
That way, everyone is happy - the guy who doesn't want to meet gankers, the gankers and people who don't mind gankers. That's the beauty of having three parallel modes - you get to choose who you wanna meet, so complaining about changing a mode to satisfy you when you can just switch to another is pointless.