Well if you got a bid congratulations. However, I don't think anyone who called you out for attitude did it out of age or sour grapes. It's more of a golden rule/ "if you don't have anything nice to say" thing.
http://greekchat.com/gcforums/showthread.php?t=54403
("Even if you have no desire to join XYZ house, remember that sister has pledged her life to that sorority and it means a lot to her.)
http://www.greekchat.com/gcforums/sh...threadid=45169
Anyways, ike I said, congrats if you got a bid.