I have been doing dietbet since January (5 total) and have never met goal.  I have always lost enough to be happy, but never the full amount to meet the monthly goal.  Well...yesterday that changed.  For the first time I did it.  Wooohooo!  Persistance is paying off.  I am now 235 days into this journey and have lost 21.2lbs.  Slow and steady.  Slow and steady.