f) Amazon believes the consumer will eventually force the prices down and this was their method of bringing public attention to the issue. Thus every author posting on their blog today ultimately helps Amazon.
First, I find it very hard to believe that they wouldn't have seen that coming when they first yanked Macmillan's books.
Second, even if they did realize that they were going to lose and decided to back down, I find it hard to believe that the best messaging channel is a Kindle forum, and that the best language to use makes you sound like a tiny retailer with no power who has to "capitulate".