Sadly you get people that do this stuff.
I remember way back in 2001 right after 9/11 that a lot of players wanted to do a memorial flight in the MA which I launched and became apart of. About 30 people got into formation from all 3 chess pieces and then came the vultures which started picking off people in the formation. When I asked why they would do this the response I got was "we're free kills". IIRC this was before the perk point system so they got nothing for it besides their name in lights.
Granted I know it's a game and a lot of people live by the belief that "if it's red it's dead" philosophy, but I sometimes think people take it too far and don't really respect other players when they're trying to get some enjoyment of a limited time event. (And don't take as 9/11 is an "enjoyment", I meant Santa.) I sometimes feel like I'm the only person that thinks about the other player, and I've made choices at times in which I've disengaged or not attacked at all, like when an enemy already has 2 friendly's on him or a set of buffs going home or landing. Granted this is the way I fly and other people can fly however they want as it's their money, I just wish for a more thoughtful community at times.