where did this "report ..." thing start ?
In my opinion a report should be given if someone behaves unresponsible, say, he harasses people, intentional feeds, flames, or just is a unhealthy part of the game.
Since i started league 2-3 years ago it has been something i read in every damn game.
If i win a game the enemy team want to report the guy who is made responsible for their lose, even if they are all bad, and if im on the losing team everyone flames the one/the lane who fucked up most even if they could have helped them earlier to prevent them being completely behind and useless.
i don't think reporting everyone who loses his lane makes anything better, i dont think reports even work that way