<<I forgot to add a trigger warning to this post. If you are not comfortable with food, if you are suffering from an eating disorder yourself, you're probably best served staying away. That being said, please PM me if you're interested in a more sensitive discussion on the topic. I am more than willing to talk with you, and offer anything I can to help you in your situation>>
After hijacking the thread on a study related to significant weight loss through starvation, I received many requests to do an AMA. So, here it is!
I lost 260 pounds over the course of approximately 11 months through severe self imposed restriction. There were fluctuations towards the end of the process, from losing even more weight to gaining through re feeding, but now a year and a half removed from the process beginning, my total loss remains around 260 pounds.
Here are random pictures from my life showing the transformation.
Body before: http://imgur.com/McApH9s
 Face before: http://imgur.com/w3N6pFE
 (I may have already lost some at this point) Body after: http://imgur.com/5jKgN9U
 Face after: http://imgur.com/gtfJYBr
Edit: Another picture showing body and face for the guy who says I found a random picture. This picture is quite old, not sure if I was my maximum weight, but it gives an idea: http://i.imgur.com/rKFvU4D.jpg
I am an open book, and will answer anything. That being said, in no way shape or form do I condone the method by which I lost all my weight. If you are looking for tips on how to lose weight from starving yourself, go elsewhere. Worse than that, if you're "pro-ana", I say to you as sincerely and as kindly as possible, you're a terrible person, and part of what is wrong with this world.
EDIT: I am including this because of the questions about supporting anorexia, offering advice, sounding too positive on the experience. Let me be clear.
I destroyed relationships. I may have kidney disease at age 40. My heart rate is still shaky. I have had multiple surgeries, and have another coming up in two weeks. Losing weight did ABSOLUTELY NOTHING to improve my self image; that came from learning to love myself.
I was so, incredibly lucky to not have my heart just stop while I was in bed, while I was reading, while I was riding my bike, while I was at work. You may very well not be as lucky.