ELO Helll: yes it does exist
Before playing a lot of ranked games, I read all the "ELO Hell doesnt exist, it's you" stuff. And.. it made sense to me.
Then through a sequence of events...one of which being a jerk I unfortunately duo-queued with, who deliberately threw it to derank me... I have now entered.. the E.H. zone. And I believe.
People say, "oh, if you're good, you should be able to carry the game".
To which I say: Carry this: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1635911864/214322917
not 1. not 2. but 3 people, going with 16 deaths.
Not because the other team was great...but because these people were idiots who insisted at throwing themselves at the opposite team and dying.
I've had a lot of individually good games. Even that one, I went 10/7/4. Was a lot better before I died a couple times in last-ditch defense stuff. I played well. Gave good advice. Even bought a pink ward. Doesnt matter when teammates are insistant on dying 6 times in the first 10 minutes
In bronze, it really seems a matter of "the team that wins, is the team that does not happen to get the total idiots". IE: It's all about random placement luck, not your skill. To be able to carry out yourself, seems like you would have to be basically a gold level player already.
My ranked KDA is now 2.2 according to na.op.gg. Yet, after an awesome winning streak of 6 games in a row or something.. I've now had an overall losing streak that has put me even lower. Very few of those games, have I myself done poorly.