Title. It has to be, one of the most tilting things in LoL. Don't group when they say group? "Report X". Don't want to play a 4v5? "Report X" Take 3 cs that are bouncing off a turret? "Report X"
Half the time its to threaten and strongarm you into playing how they want you to play. Just tilts the hell out of me. I dont see how Riot does not realize how toxic it is. I legit don't even want the person who said it, to win at that point.