User blog comment:Fistful of Force/Just how much did Olaf get screwed?/@comment-4794115-20130219013441

Olaf was broken before the nerfs. If you can build straight tank, and still be able to be one of the top damagers of the game, there's a problem. HE didn't need the flat pen period, let alone when his ult wasn't up.

This nerf dropped him down to balanced.

So QQ more about fair champs. Makes sense.