I don't think that was 'critiques' as we know them now. It has been developed a lot further.
I think before it was just trying to get people to leave more of a comment than "omg- cool! srsly awesome! ". lol But it didn't used to have stars and notify people when critiques were given and received.
I think before it was just trying to get people to leave more of a comment than "omg- cool! srsly awesome!