I always came to play games here
after a few months I decided to sign up.
Then I was still just playing games,rating and commenting.
But after a month or something I started to talk in the community,which is much more fun then just play games!
So join and you can tell your opinion on topics where people ask something, or even ask your opinion about something.
But you can talk too in the forums where you have to say your opinion about a decision to change on the site etc...