If you read this site's rules:
http://www.crosswordsolver.org/forum/rules
it's pretty clear that the AB thread would have been removed by this site's "thought police". Both AB and this site are advertising-supported businesses (not public forums) whose owners can delete any thread they choose.
Fortunately there is a happy equilibrium: those who wish to give help on a current puzzle can come here, those who wish to discuss how the puzzle made them feel can go to AB, and if there is a desired third way, someone can start their own ad-supported forum to discuss it there.
But why all the acrimony? If the energy devoted to discussing this over the past few weeks had been directed towards feeding the hungry, world peace, or talking a long walk in the woods, what a wonderful world it would be.