I don't know that I would consider myself a yoyo dieter.  But my weight has fluctuated over the course of my life.  I have found that during extreme hardships of my life I tend to gain weight.  I will continue to gain and gain while I am down, depressed, avoiding life.  I experienced the hardest thing on earth a few years ago and have gained more weight than I've ever gained and weighed the hightest I've ever weighed.  I tried to fight it off by joining a few dietbets.  I thought surely if I put my money where my mouth is then there's no way I would lose.  I quickly found that to not be true.  No amount of money paid for these games could get me out of my hole.  I finally got to the place within myself that I realized if I wanted something to changed, I would have to change it.  I couldn't "bet" money and expect it to happen on it's own.  I realized that though these games are amazing and great accountability, that it won't "fix" the overall issue.  If you are lacking willpower or confidence to make a change then you will find you won't win these games.  You have to get to a place within yourself that makes you determined to see yourself succeed.  I finally reached that breaking point back in late summer.  I was avoiding social outings and photographs because I was so embarassed by what I had let happen to myself.  I hated myself. I didn't care about myself.  When I realized this was not going to go away on its own and I wasn't going to just be happy with myself again overnight and I decided I was tired of being unhappy.  Now I've joined these games and find that I'm winning them.  The community is wonderful and the few extra dollars each game helps to treat myself to non food rewards and lets me save for something special, but I can't count on the game to meet my personal goals.  I have to count on myself.   I'm only sharing this as a realization I've discovered about myself.  I am only about half way to my normal body weight, so I am still learning and working hard, but just hoped this would be encouragement to someone.   You have to be healthy on the inside before you can be healthy on the outside.