The LoseAThon thing is a friendly little competition started and administered (thankfully!) by @hellasound as a result of a bit of twitter joking around to encourage eating right, drinking lots of water, and exercising more--a bit of keeping each other accountable if you will. My first 2 weigh-ins after the initial one showed some great progress but take one day of sushi and 3 HobNobs cookies (I'm NOT calling them biscuits!) and the scale showed a gain of 3 pounds this morning, grrrrrrrrrrrrrrrrr.
BTW, buy some music while you're over at the hella sound site, it's a bit on the excellent side!