As far as I'm concerned, there were only two things that were regularly found in Feedback. Spam and unneeded drama. I think that people will actually be listened to more if they take the time to PM an admin, anyway. It means the admin doesn't have the pressure of the entire world waiting for their answer.
Did you guys know that, way back when I suggested Feedback, it was supposed to be just a thread? Then Scottie made a forum, and everyone was all "wtf?" and he was all "oh, sorry" and then we were all "eh, we'll see how it goes". So now that we've seen how it's gone (over a damn long time, mind you), we've made our decision and decided against a Feedback forum.
I've been gunning for that forum to be removed for a while now, mind you.