Nothing is more depressing than reading an inciteful blog or forum post, having the perfect reply, and then being denied because either the poster has closed comments for that post or because you've previously been banned (for being right, usually).

http://www.victorlams.com/audio/Victor_Lams_-_Comments_Closed.mp3

Might not want to listen to this with the kids around as it contains a phrase which contains a word some may consider objectionable.