User blog comment:Legionwrex/Problems with Multiplayer./@comment-1388547-20121215200919/@comment-1388547-20121216061117

I admit I sometimes get mildly annoyed over kill stealing in the sort of extreme case that Lancer brought up, but I generally don't get too bothered over it. If it's a matter of pride, you still know that you would have been able to do it. If it's a matter of points or kill medals, it's a little more annoying but those assist points still add up, and there are assist medals too. (I was just playing with a guy who was much more proficient than me -- I think he was about to climb into the #8 spot in the world for challenge points? his challenge score was over 30,000 -- and I got a lot of assist medals playing with him...)  I actually often get top scores with characters who deal light damage to many enemies with area effect powers, such as chain Overload; this doesn't lead to a lot of kills, but it does lead to a lot of assists, and gives me the impression that I'm being a useful teammate even though I'm not getting a lot of kills.