History repeats itself
Zed is basically Lee Sin. (Ab)useres be like: "BUT MA SKILL!". Currently everybody and his dog likes to abuse this broken champ, hoping to raise their Elo. People know he's broken, but deny it - they don't fcking care about balancing as long as they see a chance to raise their Elo with him.
Ultimately people will get tired of seeing or banning him each game (Already 66,44% banrate in Korea), just like Lee and finally ask for balancing.
Calling it.