One of the worst pieces of journalism I ever witnessed was from The Sun, when it printed the contact details of Urs Meier, the Swiss referee of the England / Portugal game in 2004.
I used to read the Red Tops (for convenience) up until that point, but for me it was the straw that broke the camel's back. I now read The Times, but occasionally glance at The Sun (as my colleague reads it), and I now realise what a pathetic, infantile, racist, sensationalistic waste of paper it really is.