Shouldnt there be a thanking button? It says thanks at the bottom right corner.
It will say this when you click it:

The Following Users/User say Thank You to MKWiiGuy3436 for this Useful Post:
Fireball, TC8950

Then you put a limit of how many thanks you have next to your avatar!

Doesnt that sound like a goood idea, Justin? You click Thanks if that post was useful or it was good even though it was not useful. Hope it is a good idea.

Thats for using me as a test subject! haha :P