Like many others, I am profoundly disheartened by Amazon's censorship of GLBT titles. I believe that, while the alleged "glitch" may have cast a net wider than you had intended, the intent of targeting GLBT content for censorship is clear.
There is no excuse for censorship, ever, of any content, regardless of how distasteful some might find said content.
I will not be ordering from Amazon in the future, unless Amazon rectifies this issue appropriately.
for those of you who haven't seen this yet - google "amazonfail," and then start getting your books from your local independent bookstore.
to find a local independent bookstore near you, go to http://www.indiebound.org/