How to activate negative rating option in profile settings?

[Googolplex]

Hello, did anyone know how to do that?

Because I think it is totally noobish to disable that.
Looks like someone couldn't tolerate critics.

It's like EA, they closed all their forums because too many people said critics about games.
I'm a guy with honor and so I want fair rating options, not only positives.

When there exclusive are positives, it's not really posotive.
Something only can be positive, when there are even negatives.

Am I right, that nobody here has negative ratings?