Go read this. It’s a startlingly thoughtful transformation. I think regardless of whether it does anything for your opinion on the matter you have to admit it’s laudable to publicly realize you’ve lived long enough as the hero to see yourself slowly transform into the villain. And then clearly express the desire to change.
It’s a very different kind of post than an apology, something John Scalzi wrote about quite well. I wanted to read and re-read it over a few days before talking about it then realized it’s just a little too personal for me to really comment on other than to say go read it. I’m not saying people shouldn’t comment, but the more I read it the more I thought “well there but for the grace of the flying spaghetti monster go we all sometimes.”