The real reasons why Fizz, Yas, Zed etc ruin the game
I've read the boards for a long time and I think most of you really are missing the point.
Just because at higher elos can counter the annoying champions like Fizz and Zed means nothing--you are not always going to be the one laning against that champions. And if you are playing at Silver or Gold, these players are likely to not be great at countering these champions, which means you are likely to have to deal with a fed Fizz or Zed or Yas. That is why they are banned and this whole situation really ruins the experience and the game.
Again, for some of you dense nerds out there, it doesn't matter if the champion can be countered with enough skill. You are still going to lose the match and the same LP regardless of how well you did.
So in this situation that I am talking about, these champions are OP and that's why they get banned and why everyone hates them.