I have started playing Defera a lot more recently for fleet marks. One reason is because of afker's on Incursion which is normally the best rewarding mission when played right. I am sure people grief on purpose. I have seen people with ridiculous amounts of injuries playing the mission and shooting everything but sabos in the first round.
I do hope the new reputation system has more missions where you don't need to to team especially since it isn't fleet related.