Absolutely not. Not even if I'm upset at another player in my game. There are, typically, 9 other people in game with you in a standard match and it just doesn't make sense to force everyone to have a bad time. You'll ruin the game for your team of course, and also make it unpleasant for the other team, too. I'm sure they won't be as upset about a free win as your team may be with you, but also it takes the fun out of the match if they're put at an incredible advantage because someone else chooses to troll. I just don't see the point. If I'm not going to take the game or the match seriously, I should probably be playing or doing something else entirely.
I don't troll in games and I've never done it. I think people do it as a way to release their frustration when they see they are not winning.
