To be totally honest... I'd probably try to cover SOME things up. After I've lost the weight, when I meet people who never saw what I look like now, I probably won't go out of my way to make it known. Not that I will burn all old pictures of me or anything like that, but I feel like it'll just make me uncomfortable to look at my "fat" pictures, because it will remind me of how unhappy I was (with my body, not my life, heh) at that point. Plus, it might embarrass me a little. I will certainly take humongous, enormous pride in the fact that I lost so much, but I think that the process has been/will be a very private thing for me. Some people get great satisfaction from inspiring others with their stories, but personally I guess I'd like to keep it to myself. If I got very close to a person, I certainly wouldn't hesitate to share some stories if the subject happened to come up, and I'd certainly never look at an old photograph and deny that it's of me, but for the most part I think I'll prefer to look forward rather than looking back.
