Scroll the boards for 15 minutes and you'll see the following posts:
ADCS are OP -gets upvotes
Assassins are OP-gets upvotes
Tanks are broken-gets upvotes
XX champ and XX item is so op etc etc.
Some champs and classes as the game changes get stronger and weaker,but i dont understand how most of the board members dont realize they've been taken by the classic "Grass is always greener on the other side effect"
What i did recently is i played 5-10 games of every class,just to see whos right and whos wrong,and i gotta say most of the time no matter what class you play as long as your champ is meta and you get snowballing you're going to stomp people.
Try playing different classes,you'll be surprised to learn every class you think is op has its own problems and most people cant see pass them and are stuck in "that guy has it better" mode of thinking