Couldn't find the original post. Apologies to the creator.
EDIT: Original thread: https://boards.na.leagueoflegends.com/en/c/general-discussion/tE2wrYIH-the-game-seems-to-be-fine-again-introducing-the-yasuometer
The "Yasuo Metric" is a way of measuring the state of the game based upon how much people are complaining about Yasuo. The less people complain about Yasuo, the more people hate the game. Whilst there are a few threads about things like positional matchmaking (Which we don't have in non-NA/KR regions, and as such the outrage about is possibly reduced appropriately), most of the hot boards complaints are about Yasuo.
Just a thought.