Ann Coulter is, at this point, a known quantity (especially after the raghead remarks last year), and she delivered what they knew she would deliver. Where were the complaints in advance of her appearance? There were none that I am aware of, and this is just damage control. An open letter isn't going to solve the real problem with the conservative movement. And hell, the authors can't even write this letter without sniping at liberal websites. Ann Coulter is not the problem - she is a symptom of the problem.