Why everyboy hate Teemo?

People hate teemo because his enemies can die to his mushrooms when they think they're safe and still die to his poison after he dies.

And for the same reason your allies can hate you because his mushrooms can KS a hard worked for kill and his poison can ks to.

his viability in ranked is only about 30% of the reason why people hate him, but mostly people hate him because he's adorable yet has one of the most troll skill sets imaginable.