gimme more
I will add mine
Worst players are those who are so hardstuck that always vote no to surrender just so they have a minimal chance to get carried eventho its clearly lost game and hold you hostage
Started on season 1, I think the MMR number system was much more "sane" and games were more balanced. Since LP system was introduced plus other changes game went downhill
Changing Original Twisted Treeline was a bad idea, removing that mode was one of the worst decisions ever. I know only few people played this but they will feel me.
Client is much worse, smaller and hard to see and with less thrills than older. That's just personal preference
Games are a flipcoin mental asylum where the most tilted team lose. I've won a lot of games by tilting jungler as laner(stealing camps, deep warding, killing on buff spawn). That's why champions like quinn or support top metagame are so effective.
Just a few.