Weight loss programs have notoriously low long-time success rates. As far as we know, for most people losing a substantial amount of weight and then keeping it off over a couuple of years is practically impossible.
So I wonder if the Beeminder crew has made statistics about the clients' success. Does everyone lose some weight, then stay on a plateau for a while, and then start gaining back (at which point they archive the goal and start over or something)? I suppose this would be expected if beeminding worked similarly to regular weight loss programs. But perhaps the money penalties make beeminding much more successful?