Most possibly started from [the League] of Legends banned toxic streamer [tyler1] because of his INT list where he was writing down players who were playing bad, intentionally feed, intentionally ruin the game and so on.

Another case would be from his famous Running it down mid where he runs down the midlane (as the phrase says) and [suicides], giving free kills to the enemy team after getting frustrated about a certain event/player in the match he is playing.